Bloodseeker
[wiki] rating: 2.0 (winrate: 52% pickrate: 6%)Viper
[wiki] rating: 2.0 (winrate: 50% pickrate: 5%)Meepo
* 
Nethertoxin prevents the lifesteal from Ransack. The silence from Viper's level 25 talent also prevents Meepo escaping with Poof.
* Meepo and his clones have a lack of magic resistance, so they're vulnerable to 
Poison Attack & 
Viper Strike directed onto one clone.
Slark
* Nethertoxin negates 
Essence Shift and the regeneration aspect of 
Shadow Dance.
* 
Dark Pact doesn't mean a lot against Viper's ubiquitous slows.
* Viper becomes a relevant presence in team fights before Slark can procure his standard items (e.g. 
Shadow Blade).
Mars
[wiki] rating: 2.0 (winrate: 49% pickrate: 9%)Slark
* Bulwark blocks much of Slark's basic attack damage, even after Essence Shift and during Shadow Dance.
* Slark finds it very difficult to have a good early/mid game when pressured in the early game by Spear of Mars and God's Rebuke.
* Spear of Mars and God's Rebuke can hit Slark through Shadow Dance.
* Should 
Pounce be on cooldown, Slark is very vulnerable inside Blood Of Arena.
Meepo
* 
Bulwark blocks the attack from Meepo and his clones.
* 
Spear of Mars & 
God's Rebuke prevents Meepo and his clones from initiation or escaping.
Shadow Fiend
[wiki] rating: 2.0 (winrate: 48% pickrate: 11%)Slark
* Shadow Dance does not protect Slark from Shadow Fiend's AoE spells.
Meepo
* Shadow Fiend can easily focus down and kill one of the Meepos.
* The amount of damage from Shadow Fiend's AoE spells makes Meepo vulnerable in every aspect.
Elder Titan
[wiki] rating: 2.0 (winrate: 48% pickrate: 2%)Meepo
* Meepo lacks the disengages to escape a well-timed Echo Stomp, in particular if Elder Titan is his current target.
* Clones are counted as heroes, increasing massively the power of 
Astral Spirit's buffs, including Aghanim's Scepter's spell immunity buff.
* Meepo relies heavily on high agility and his mediocre strength gain makes him a very prized target for Natural Order.
* Meepo and his clones like to group up to hunt and kill in teamfights or ganks and can be easily disabled together with Echo Stomp.
Additional:
* 
Echo Stomp can completely disable multiple Meepos for 5 seconds.
* Astral Spirit will affect Meepo clones, as they don’t count as illusions. Elder Titan can receive a massive amount of damage, armor and movement speed from each Meepo.
* With 
Natural Order, Elder Titan’s mere existence causes Meepo to be disadvantaged, due to the aura that completely negates his base armor and magic resistance. Combining Astral Spirit with Natural Order allows Elder Titan to easily kill any Meepo within a second, depending on how much damage he gains from Astral Spirit.
* 
Earth Splitter deals over 30%/40%/50% of each Meepo’s max hp, and is even stronger if the Meepos are near Elder Titan due to Natural Order.
Slark
* Natural Order aura prevents Slark from gaining armor from the agility stolen with Essence Shift.
* Echo Stomp and Earth Splitter can hit Slark through his Shadow Dance ultimate.
* Slark's stats gain is relatively low compared to most agility carries making him quite squishy without his agility-based armor.
Tiny
[wiki] rating: 2.0 (winrate: 47% pickrate: 17%)Meepo
* Avalanche and Toss prevents Meepo's Poof escape or using town portal scroll.
* He doesn't need to aim the weakest clone while he is grabbing tree.
Slark
* A 
Toss plus 
Avalanche combination deals heavy damage to Slark in the early game, making Tiny a very dangerous target to gank.
Jakiro
[wiki] rating: 1.6 (winrate: 50% pickrate: 14%)Meepo
* All of Jakiro's skills are Area of Effect, which can easily affect all Meepos in a targeted area.
Slark
* Heroes with AoE abilities will hit Slark in Shadow Dance: 
Lina, 
Jakiro, 
Underlord, 
Leshrac, 
Dark Seer, 
Earthshaker, 
Timbersaw, 
Crystal Maiden
Axe
[wiki] rating: 1.6 (winrate: 49% pickrate: 10%)Meepo
* Melee heroes who rely on summons, illusions or clones will trigger Counter Helix more often, thus taking more damage: 
Meepo, 
Lycan, 
Chaos Knight, 
Phantom Lancer
Additional:
* The combination of 
Counter Helix and 
Berserker's Call can disable multiple Meepos and deal heavy area damage.
* Axe's natural high survivability makes it difficult to burst him down with Poof or chip away at his health with Ransack.
Slark
* Berseker's Call catches Slark in Shadow Dance, wasting its duration and preventing him from escaping to regenerate.
* Unlike most disables, Dark Pact cannot dispel Berserker's Call, and the output damage would be returned by 
Blade Mail.
Additional:
* Berserker's Call forces Slark to attack him, even during Shadow Dance.
* Counter Helix will hit Slark in Shadow Dance, with pure damage. It also triggers frequently against Slark's high attack speed after having stolen agility with Essence Shift.
* 
Culling Blade finishes off Slark before he gets a chance to slip away and regenerate his health, preventing him from playing the hit-and-run style often associated with Slark.
Leshrac
[wiki] rating: 1.6 (winrate: 49% pickrate: 2%)Meepo
* Pulse Nova deals an insane amount of damage in an area around him, which can quickly wear down Meepo clones.
* Leshrac can catch multiple Meepos in Split Earth and follow up with the rest of his area damage spells making meepo unable to get close to leshrac.
* Diabolic Edict is a strong ability that can wear down a lone Meepo clone quickly.
Slark
* Heroes with AoE abilities will hit Slark in Shadow Dance: Lina, Jakiro, Underlord, Leshrac, Dark Seer, Earthshaker, Timbersaw, Crystal Maiden
Sand King
[wiki] rating: 1.4 (winrate: 51% pickrate: 7%)Meepo
* Burrowstrike can stun multiple Meepos, making them vulnerable targets.
* Epicenter and Sand Storm's AoE damage ensures all Meepo clones get damaged, making it hard for Meepo to choose which one to flee as all are taking damage at the same rate.
* Just be aware when using Sand Storm to escape, as Meepo has good AoE damage and disables, which, as explained in the "Bad Against" section, works well against an invisible Sand King.
Slark
* He has a hard time killing Sand King because of the survivability he gets from Burrowstrike and Sand Storm.
* Shadow Dance, which usually allows Slark to survive fights, is ineffective against Sand King's AoE damage.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: 
Anti-Mage, 
Earth Spirit, 
Faceless Void, 
Magnus, 
Mirana, 
Monkey King, 
Morphling, 
Pangolier, 
Phantom Assassin, 
Phoenix, 
Puck, 
Queen of Pain, 
Riki, 
Sand King, 
Spirit Breaker, Timbersaw, 
Tusk.
Timbersaw
[wiki] rating: 1.4 (winrate: 49% pickrate: 5%)Slark
* Timbersaw can use Chakram as a scouting tool to find Slark if he tries to Pounce into the trees.
* None of Timbersaw's abilities require a target to be cast, allowing him to hit Slark inside Shadow Dance.
* Reactive Armor can be effective protection against a Slark who attacks quickly, since the strong armor and health regen cannot be stolen by Essence Shift.
* Timber Chain makes Timbersaw very mobile, meaning he is among the very few heroes who can actually give chase to a fleeing Slark.
Meepo
* Because multiple Meepos tend to clump up, they present an easy target for Timbersaw's many area abilities.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Underlord
[wiki] rating: 1.2 (winrate: 56% pickrate: 10%)Meepo
* In general, melee heroes without blink mechanisms or spell immunity will have a hard time positioning against Pit of Malice: 
Sven, 
Tiny, 
Wraith King, 
Dragon Knight, Meepo, 
Doom, 
Bounty Hunter, Dark Seer, 
Undying, 
Alchemist, 
Legion Commander.
Slark
* Heroes with AoE abilities will hit Slark in Shadow Dance: Lina, Jakiro, Underlord, Leshrac, Dark Seer, Earthshaker, Timbersaw, Crystal Maiden
Doom
[wiki] rating: 1.2 (winrate: 48% pickrate: 9%)Meepo
* Besides 
Lone Druid and Meepo, Doom is potentially good versus every hero since Doom will render any hero helpless for a prolonged 15 seconds. This is particularly true for fragile heroes that heavily rely on mobility to stay alive.
Slark
* Heroes with silencing abilities can be particularly deadly when Slark is trying to escape: 
Silencer, 
Death Prophet, Puck, Doom
Dark Seer
[wiki] rating: 1.0 (winrate: 53% pickrate: 5%)Slark
* Heroes with AoE abilities will hit Slark in Shadow Dance: Lina, Jakiro, Underlord, Leshrac, Dark Seer, Earthshaker, Timbersaw, Crystal Maiden
Meepo
* Dark Seer can take great advantage of 
Divided We Stand by putting an Ion Shell on a clone in order to harass them effectively.
* Vacuum can take a single Meepo and disable them for him and his teammates to take out.
Slark
* Dark Seer relies on Surge for most of his mobility, so he's not very vulnerable to slows, but much more to root effects and walls or pseudo-walls such as 
Disruptor's 
Kinetic Field or 
Slark's Pounce.
Dark Willow
[wiki] rating: 1.0 (winrate: 51% pickrate: 6%)Meepo
* Casting Bramble Maze on top of Meepo guarantees a root, as it is nearly impossible to leave the thorns with all of Meepo's clones.
* Terrorize and Cursed Crown offer great disables against the grouped Meepos and can prevent them from using 
Poof to escape.
Crystal Maiden
[wiki] rating: 1.0 (winrate: 51% pickrate: 13%)Slark
* Though Slark's large damage output is most certainly a concern for the squishy Crystal Maiden, she does perform fairly well against him when coupled with aid from her team.
* Slark has no innate way to cancel Freezing Field, but the common purchase of 
Skull Basher does make Slark a substantially greater threat to Crystal Maiden as the game progresses.
* Freezing Field can still hit Slark while he is under the effect of Shadow Dance, and for the early and mid game, the damage output of Crystal Maiden's ultimate outscales Slark's passive regeneration, making a quick use of Freezing Field as soon as Slark uses Shadow Dance a great way to combat him.
* Crystal Maiden's Frostbite and Crystal Nova are helpful in disabling and slowing the slippery Slark so he can be killed by her teammates.
Sven
[wiki] rating: 1.0 (winrate: 51% pickrate: 14%)Meepo
* Great Cleave will devastate Meepo's clones. Against a closely packed group, Sven does not even need to target the clone with the lowest health.
Additional:
* 
Great Cleave and 
God's Strength can take down Meepo and his clones very quickly.
* The lack of spell immunity for Meepo's clones makes them vulnerable to 
Storm Hammer.
Lich
[wiki] rating: 1.0 (winrate: 50% pickrate: 12%)Meepo
* Poof combo puts all of the Meepos very close together, making them vulnerable to Frost Blast's AoE slow and multiple bounces from Chain Frost.
Omniknight
[wiki] rating: 1.0 (winrate: 50% pickrate: 1%)Slark
* Slark's dependence on Pounce and close range makes him very easy to hit with 
Purification.
* Slark's damage, even with a high count of Essence Shift, is easily negated by Omniknight's heals and 
Guardian Angel.
Ancient Apparition
[wiki] rating: 1.0 (winrate: 49% pickrate: 7%)Slark
* 
Ice Blast stops Shadow Dance's passive health regeneration, even when Slark is not in vision.
Earthshaker
[wiki] rating: 1.0 (winrate: 49% pickrate: 12%)Slark
* Earthshaker's many stuns can lock down slippery heroes like Slark in his Shadow Dance and 
Weaver in his 
Shukuchi.
Additional:
* Earthshaker's many AoE stuns help lock down Slark, and will often waste the duration of Shadow Dance.
Meepo
* Echo Slam's damage potential increases due to Meepo's clones.
* Eathshaker's AoE stuns can interrupt Meepo's Poof cast animation.
Additional:
* 
Echo Slam deals catastrophic damage against a cluster of Meepos and anyone nearby.
* He can potentially stunlock any number of Meepos for a fairly long duration, often enough to finish one off.
Slark
* Heroes with invisibility and high mobility can jump on and focus down Earthshaker before he has a chance to initiate: 
Clinkz, Slark, 
Storm Spirit
Disruptor
[wiki] rating: 1.0 (winrate: 49% pickrate: 10%)Slark
* Thunder Strike provides vision on him while Slark is invisible.
* Glimpse's range at lvl 3-4 is more than enough to pull him back to a favorable position for your team to group up and kill him.
* Even though he is capable of picking you off and deal enough damage to kill you, Slark will be literally sticking his neck out, since jumping on Disruptor means being on his battleground.
* AoE silence and the ability to mute Black King Bar is deadly to Slark at all stages of the game.
Additional:
* 
Static Storm and Kinetic Field locks down Slark, as he cannot use Dark Pact to dispel any disables, or Pounce out while silenced.
* 
Glimpse puts an end to any attempts at ganking Disruptor or his allies, and also negates Slark's mobility by bringing him back into the fight if he tries to escape with Pounce.
Centaur Warrunner
[wiki] rating: 1.0 (winrate: 48% pickrate: 5%)Slark
* Both 
Hoof Stomp and 
Double Edge can hit Slark during Shadow Dance, the latter requiring a unit nearby for the ability to be cast on.
* Slark has very low health in the early game, making him susceptible to the burst from Double Edge.
Techies
[wiki] rating: 1.0 (winrate: 48% pickrate: 7%)Meepo
* Due to the nature of Divided We Stand and the playstyle of splitting up multiple Meepos across the map, Techies can limit Meepo's movement with mines forcing the Meepo player to either keep all Meepos together or be extra careful when moving each individual Meepo because clones cannot carry any True Sight-providing item.
* However, if a mine blast isn't enough to kill a Meepo, he can Poof to safety of another Meepo.
Additional:
* 
Stasis Trap can lock multiple Meepos in place and prevent them from Poofing.
* 
Proximity Mines, 
Remote Mines and 
Blast Off! can deal heavy magic damage to multiple Meepos.
Puck
[wiki] rating: 1.0 (winrate: 47% pickrate: 6%)Meepo
* Heroes with powerful area-of-effect disables can initiate on Meepo and his clones and shut him down, such as 
Enigma, 
Invoker, Magnus, Puck, and Sand King.
Slark
* 
Illusory Orb and 
Phase Shift allows Puck to avoid most ganking attempts.
* 
Waning Rift and 
Dream Coil makes it very hard for Slark to escape bad situations.
* Puck's abilities used together also deals significant magical nuke damage, none of which are targeted and thus cannot be avoided by Shadow Dance.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Kunkka
[wiki] rating: 1.0 (winrate: 47% pickrate: 6%)Meepo
* X Marks the Spot is good to prevent a single meepo from escaping from a deadly situation.
* Tidebringer, Torrent and Ghostship destroys Meepo's clones.
Additional:
* 
Tidebringer's cleave damage can wear down Meepo's clones quickly. It can also give Meepo problems in the lane, due to his melee range and initially low health pool.
* 
Ghostship and 
Torrent can effectively disable Meepo while dealing heavy damage. If 
Aghanim's Scepter is purchased, Ghostship can also drag the Meepo clones out of position and set up a teammate's follow-up abilities.
* 
X Marks the Spot prevents attempts to escape using Poof.
Outworld Devourer
[wiki] rating: 1.0 (winrate: 47% pickrate: 3%)Slark
* 
Arcane Orb deals pure damage, which ignores armor granted from permanent agility stacks.
* 
Astral Imprisonment can disrupt any Pounce attempt by banishing the leashed ally.
* Slark's low intelligence and therefore mana pool makes him more susceptible to 
Sanity's Eclipse.
Gyrocopter
[wiki] rating: 1.0 (winrate: 45% pickrate: 2%)Meepo
* Flak Cannon and Call Down will shred Meepo's clones.
* Homing Missile can catch and single out retreating Meepos, making them an easy kill.
Io
[wiki] rating: 1.0 (winrate: 45% pickrate: 4%)Meepo
* Tether helps Io escape from Earthbind even if Meepo has Blink Dagger.
* Io's Spirits can pressure Meepo while laning and will usually hit at least one of his clones.
Bristleback
[wiki] rating: 1.0 (winrate: 45% pickrate: 5%)Meepo
* Quill Spray usually hits Meepo's clones, although Bristleback cannot turn his back when rooted with 
Earthbind.
Clockwerk
[wiki] rating: 0.6 (winrate: 53% pickrate: 10%)Meepo
* Because only one clone needs to be killed in order to kill Meepo, heroes that excel at singling out enemies can also be a detriment to him, such as 
Batrider, 
Beastmaster, 
Pudge and 
Clockwerk.
Invoker
[wiki] rating: 0.6 (winrate: 49% pickrate: 21%)Meepo
* Heroes with powerful area-of-effect disables can initiate on Meepo and his clones and shut him down, such as Enigma, Invoker, Magnus, Puck, and Sand King.
Death Prophet
[wiki] rating: 0.6 (winrate: 49% pickrate: 2%)Slark
* Heroes with silencing abilities can be particularly deadly when Slark is trying to escape: Silencer, Death Prophet, Puck, Doom
Troll Warlord
[wiki] rating: 0.6 (winrate: 49% pickrate: 4%)Meepo
* 
Troll Warlord can root and deal a lot of damage to a single Meepo while lifestealing through the assault from the other Meepos. Meepo needs expensive items like 
Ethereal Blade or 
Heaven's Halberd to be able to fight him.
Abaddon
[wiki] rating: 0.6 (winrate: 49% pickrate: 3%)Slark
* Heroes that can deny Slark early kills will prevent him from snowballing: 
Dazzle, 
Abaddon
Lina
[wiki] rating: 0.6 (winrate: 48% pickrate: 13%)Meepo
* Light Strike Array catches Meepo and his clones if he tried to gank Lina with Earthbind & Poof.
* Laguna Blade can quickly kill Meepo and his clones before they escape with Poof.
Slark
* Heroes with heavy magical nukes will take advantage of Slarks poor HP or force him to use Shadow Dance early: Lina, 
Lion, 
Zeus
Slark
* Dark Pact can be cast during the cast animation of Light Strike Array and dispel its stun.
* Pounce allows Slark to close the gap to Lina.
* Shadow Dance prevents Lina from killing Slark with her Laguna Blade when his HP gets low.
Lion
[wiki] rating: 0.6 (winrate: 48% pickrate: 15%)Slark
* Heroes with heavy magical nukes will take advantage of Slarks poor HP or force him to use Shadow Dance early: Lina, Lion, Zeus
Meepo
* 
Finger of Death's burst damage can kill him due to his low health pool, and Ethereal Blade only makes it worse. If Lion purchased an Aghanim's Scepter, the situation only grows worse.
* If Meepo ganks Lion with Poof and Earthbind, he will be an easy target for 
Earth Spike & AoE 
Hex from his level 25 talent.
Slark
* Pounce allows Slark to close in on Lion and prevent him from escaping.
* Lion's fragile health pool makes him easy prey for Slark's high burst damage through Pounce, Dark Pact and right-clicks.
* Shadow Dance prevents Lion from casting Hex, Mana Drain, or Finger of Death on Slark.
* Dark Pact allows Slark to dispel any of Lion's disables.
Dazzle
[wiki] rating: 0.6 (winrate: 48% pickrate: 5%)Slark
* Heroes that can deny Slark early kills will prevent him from snowballing: Dazzle, Abaddon
Vengeful Spirit
[wiki] rating: 0.4 (winrate: 53% pickrate: 6%)Meepo
* With Nether Swap, Vengeful Spirit can isolate one of the Meepos, making him an easier kill for the team.
* Her Magic Missile gives her an easy way to cancel Meepo's Poof, preventing isolated Meepos from fleeing.
Slark
* Heroes who have a high mobility (Queen of Pain, Storm Spirit, Slark, etc.).
Night Stalker
[wiki] rating: 0.4 (winrate: 52% pickrate: 6%)Slark
* With Dark Ascension he can keep vision on Slark, disabling his Shadow Dance regeneration. Slark is also too weak to seriously threaten Night Stalker in lane.
Meepo
* 
Night Stalker's most skills are single targeted which allows other Meepos to Poof, Earthbind and kill him.
Faceless Void
[wiki] rating: 0.4 (winrate: 51% pickrate: 17%)Slark
* Time Dilation while Dark Pact and Pounce are on cooldown will make these abilities unusable for a long time, reducing his escape potential. However, Time Dilation is dispellable with Dark Pact so it needs to be timed well.
* Chronosphere will not reveal Slark during Shadow Dance, but covers the whole duration of Shadow Dance making him unable to use it to attack or escape. Slark still receives the regeneration benefit from Shadow Dance.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Chaos Knight
[wiki] rating: 0.4 (winrate: 50% pickrate: 3%)Slark
* Dark Pact is minimally effective against Phantasm illusions, and Slark lacks area damage otherwise.
* Pounce can be counteracted by Reality Rift.
* Slark is naturally frail and dies quickly to Chaos Knight's burst damage before he can build Essence Shift stacks.
* Be aware, however, that Shadow Dance can make Slark hard to kill as he can't be targeted during its duration.
Additional:
* 
Phantasms have enough health to survive Dark Pact, and Slark has no other source of AoE damage to deal with them.
Meepo
* Illusion-based and multi-unit heroes can take advantage of Chaos Knight's lack of area damage: 
Naga Siren, Phantom Lancer, Meepo, 
Broodmother
Monkey King
[wiki] rating: 0.4 (winrate: 46% pickrate: 6%)Meepo
* 
Tree Dance and 
Primal Spring allows him to chase a retreating Meepo.
* 
Boundless Strike gains critical strike bonuses and 
Wukong's Command can take down Meepo and his clones very quickly.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Ember Spirit
[wiki] rating: 0.4 (winrate: 46% pickrate: 11%)Meepo
* Meepo is quite fragile in the early game and can be easily taken down by Flame Guard's and Searing Chains' damage. Later on, Meepo is very vulnerable to Sleight of Fist's damage due to 
Battle Fury's cleave on multiple Meepos.
Additional:
* 
Sleight of Fist boosted by Battle Fury and 
Daedalus makes quick work of Meepo if clones are crowded around each other.
* 
Searing Chains interrupts Meepo's initiating because Meepo's clones do not have spell immunity.
Meepo
* Heroes with high mobility can be prevented from using it to their advantage with Earthbind, even if they pack a dangerous arsenal: Earth Spirit, 
Ember Spirit, Storm Spirit, 
Nature's Prophet, Phantom Assassin, Riki, Anti-Mage, Weaver.
* See items and abilities disabled by roots
Bane
[wiki] rating: 0.2 (winrate: 52% pickrate: 6%)Slark
* Low-health, normally mobile carries with a lot of damage are vulnerable to Bane's nukes and disables: Anti-Mage, Clinkz, 
Drow Ranger, Faceless Void, 
Gyrocopter, 
Juggernaut, 
Luna, Meepo, Mirana, Monkey King, Morphling, Phantom Assassin, Phantom Lancer, Riki, 
Shadow Fiend, Slark, 
Sniper, 
Terrorblade, Troll Warlord, Weaver.
Meepo
* Low-health, normally mobile carries with a lot of damage are vulnerable to Bane's nukes and disables: Anti-Mage, Clinkz, Drow Ranger, Faceless Void, Gyrocopter, Juggernaut, Luna, Meepo, Mirana, Monkey King, Morphling, Phantom Assassin, Phantom Lancer, Riki, Shadow Fiend, Slark, Sniper, Terrorblade, Troll Warlord, Weaver.
Slark
* Dark Pact can dispel Enfeeble, as well as Nightmare and Fiend's Grip if timed well.
* Shadow Dance protects Slark from Bane's single-target-only abilities.
Ogre Magi
[wiki] rating: -2.0 (winrate: 51% pickrate: 16%)Slark
* Dark Pact dispels Ignite's slow and Fireblast's stun.
* Shadow Dance allows Slark to regenerate HP, even when he is affected by Ignite and Fireblast.
Meepo
* Ogre Magi has single-targeted magical-only damage and disables and is less effective against Meepo's clones.
Mirana
[wiki] rating: -2.0 (winrate: 52% pickrate: 13%)Slark
* If Slark sees the Sacred Arrow before it hits him, he can use Dark Pact to remove it a moment later.
* Pounce prevents Mirana from escaping with Leap.
* Slark can survive Mirana's Aghanim's Scepter combo with Shadow Dance.
Meepo
* Earthbind prevents Mirana from Leaping or going invisible with Moonlight Shadow. She can be easily killed by Poof and 
Ransack while disabled.
* Landing a Sacred Arrow on Meepo does not render him helpless, as all of the other Meepos can still fight back.
Nature's Prophet
[wiki] rating: -1.6 (winrate: 45% pickrate: 7%)Meepo
* Meepo can net Nature's Prophet's treants with Earthbind and then he Poofs them. Putting an end to his pushing.
* Skilled Meepo can rival and even exceed Nature's Prophet's global presence by combining Poof with 
Boots of Travel, meaning that he can not only stop his push, but also can kill him if he is not careful.
Slark
* Pounce also stops Nature's Prophet's 
Teleportation.
Tinker
[wiki] rating: -1.6 (winrate: 47% pickrate: 5%)Slark
* Pounce prevents Tinker from blinking away.
* Slark frequently builds Shadow Blade, which allows him to approach Tinker unnoticed. Since Tinker's farming usually covers a significant amount of area on the map, Sentry Wards may not be cost effective.
* Shadow Dance allows Slark to detect both common and unusual wards. Eliminating common ward causes Tinker trouble farming many lanes if he does not know who may be waiting to jump on him. Slark is also uniquely able to identify some of the less common wards used by Tinker, such as those placed on the cliffs at map edges which Tinker uses to give him vision over the trees he uses to hide in.
* Slark's extremely high move speed from Shadow Dance, potentially stacked with Shadow Blade, allows him to easily follow Tinker between lanes, especially if Tinker has pushed the lanes out.
* Dark Pact dispels Laser's blind.
Meepo
* 
Tinker who can't fight multiple heroes will suffer greatly against Ransack and Earthbind. However, Tinker with Aghanim's Scepter can blind multiple Meepos permanently with 
Laser, killing them before Poof can come off of cooldown.
Morphling
[wiki] rating: -1.6 (winrate: 47% pickrate: 11%)Meepo
* Earthbind disables Waveform, effectively keeping Morphling in place for an extended period of time, allowing Meepo to deal considerable damage with Poof.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Earth Spirit
[wiki] rating: -1.6 (winrate: 49% pickrate: 7%)Meepo
* Heroes with high mobility can be prevented from using it to their advantage with Earthbind, even if they pack a dangerous arsenal: Earth Spirit, Ember Spirit, Storm Spirit, Nature's Prophet, Phantom Assassin, Riki, Anti-Mage, Weaver.
* See items and abilities disabled by roots
Slark
* Pounce's root prevents Earth Spirit from using Rolling Boulder to escape, making it easier for Slark to shut him down especially in the laning phase.
Phoenix
[wiki] rating: -1.6 (winrate: 49% pickrate: 13%)Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Meepo
* Meepo is unlike any other multi-unit enemy Phoenix may face in the battlefield. Unlike illusion-based heroes like Phantom Lancer or Chaos Knight, Meepo's clones are not illusions, meaning they can deal full damage to the Phoenix Sun if all four (or five) are present.
Additional:
* Earthbind can prevent Phoenix from using 
Icarus Dive, the only escaping mechanism of this hero.
* Heavy burst damage from Poof can easily kill Phoenix even when it slows down all the Meepos with 
Fire Spirits.
* Meepo's clones destroy the Phoenix Sun from 
Supernova in no time, even when they are slowed down by Fire Spirits.
* Meepo's naturally high magic resistance gives Phoenix a hard time with bursting him down. He can even turn the tide if Icarus Dive is on cooldown.
Wraith King
[wiki] rating: -1.6 (winrate: 51% pickrate: 8%)Meepo
* Meepo has a better advantage in farm with Divided We Stand, as well as having a higher attack speed due to his tendency to build items that give attributes. In addition, Wraithfire Blast stuns only one target, and choosing to engage one Meepo will most certainly mean engaging them all.
Slark
* Dark Pact, if timed correctly, can dispel Wraithfire Blast's stun and slow.
* Since Wraith King has a lot of health and multiple lives, Slark can keep gaining Essence Shift stacks, increasing armor, damage, and attack speed and can beat down Wraith King twice.
* Slark sometimes carries 
Diffusal Blade to burn mana as an attempt to shut down Reincarnation.
* Because Wraith King has no AoE abilities, Shadow Dance is particularly useful against Wraith King.
Arc Warden
[wiki] rating: -1.6 (winrate: 52% pickrate: 9%)Slark
* 
Flux is dispelled by Dark Pact.
* Pounce allows Slark to avoid 
Spark Wraiths.
* 
Tempest Double allows Slark to build up Essence Shift stacks, especially when it is being used for split pushing.
Meepo
* 
Arc Warden's Flux is meaningless against Meepo who loves to group up. Meepo is also a very good gap closer, so Arc Warden's Magnetic Field becomes useless.
Additional:
* Flux is severely impaired against Meepo because of Divided We Stand.
* Meepo's farming speed and early powerspikes allows him to pressure Arc Warden before he is capable of fighting effectively.
* Without 
Black King Bar, Earthbind and Poof can finish Arc Warden quickly before he has time to do much.
Spectre
[wiki] rating: -1.6 (winrate: 52% pickrate: 17%)Meepo
* Poof combined with Earthbind can be used to easily lockdown and burst Spectre down.
* As Meepo's playstyle is often to come online early to mid game and take over the whole game, Meepo will often be much further ahead of Spectre in farming.
* Meepo's global map presence allows him to effectively hunt for Spectre and disrupt her farm.
* Spectre has no strong AOE abilities or way to control or lock down Meepo.
Slark
* Heroes with good escapes can usually outmaneuver and escape from Spectre: Slark, Clinkz, Weaver
Additional:
* Essence Shift deals 20 extra damage by draining one strength per hit, which cannot be reduced or spread by 
Dispersion.
* Pounce prevents Spectre from escaping from or chasing with 
Spectral Dagger.
* 
Haunt illusions usually don't deal a lot of damage to Slark as he tends to buy a Shadow Blade, preventing 
Desolate's and Diffusal Blade's damage and activating Shadow Dance's regeneration to make up for any damage caused by 
Radiance.
Riki
[wiki] rating: -1.6 (winrate: 53% pickrate: 5%)Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Meepo
* Root is a deadly threat to Riki, disabling both Blink Strike and Tricks of the Trade while making him fully revealed, making Earthbind a good ability against him.
* Smoke Screen may not be able to silence all the Meepo clones.
* Riki has no true area damage, as Tricks of the Trade's damage is distributed between all Meepo clones, so he cannot effectively fight Meepo or deal with his strong ability to push.
Luna
[wiki] rating: -1.4 (winrate: 50% pickrate: 5%)Slark
* With 
Dust of Appearance, Luna will be able to use 
Eclipse on invisible heroes. Be mindful that Slark is exception because he'll be able to remove the debuff with Dark Pact.
Meepo
* Meepo can tank Eclipse because of his clones.
* Earthbind takes away Luna's mobility advantage.
* Meepo can shutdown Luna's split-push ability with his global presence.
Slark
* Shadow Dance prevents Luna from damaging Slark, and together with Shadow Blade he can kite her or escape.
* Luna has no way to escape from Pounce's leash.
Additional:
* Luna's lack of mobility and escape abilities makes her easily gankable by Slark.
* Shadow Dance will avoid all the damage from Eclipse.
* For the same reasons, Slark is a good ally for Luna when they are in the same team.
Storm Spirit
[wiki] rating: -1.4 (winrate: 51% pickrate: 10%)Slark
* Heroes that rely on their high mobility such as Queen of Pain, Slark and Weaver can be constantly engaged against due to your excellent ability to chase over any terrain. Make sure you carry true sight items (such as Dust of Appearance or 
Gem of True Sight) for invisible heroes that could potentially escape your clutches.
Slark
* Pounce's leash prevents Storm Spirit from using 
Ball Lightning, making it hard for Storm Spirit to escape a gank from Slark.
* Dark Pact can dispel 
Orchid Malevolence's Soul Burn.
Meepo
* Earthbind, like any root, inhibits usage of Ball Lightning, eliminating Storm Spirit's mobility.
Anti-Mage
[wiki] rating: -1.4 (winrate: 51% pickrate: 16%)Slark
* Heroes who build mana boosting items but have low mana regeneration are especially vulnerable against Mana Break and Mana Void: Timbersaw, Slark, Shadow Fiend, Clinkz, 
Bristleback 
Nyx Assassin, Magnus
Meepo
* Multiple Earthbinds allows Meepo to lock down Anti-Mage almost indefinitely.
* Meepo's clones can only use their mana for Poof, keeping their mana pool nearly full and thus making them a bad target for a Mana Void.
Additional:
* Earthbind can prevent Anti-Mage from using 
Blink, allowing Meepo to kill him with attacks and Ransack.
Slark
* Pounce prevents Anti-Mage from using Blink, and lets him disengage from Anti-Mage if needed.
* Essence Shift allows Slark to permanently steal agility from Anti-Mage.
* Shadow Dance stops Anti-Mage from being able to fight back in a slippery situation.
Templar Assassin
[wiki] rating: -1.2 (winrate: 49% pickrate: 6%)Meepo
* Multiple attackers thanks to summoned units or clones: Meepo, 
Witch Doctor, Lycan, Enigma, 
Shadow Shaman
* Heroes that can quickly deal damage to her, regardless of how weak they are, can easily break through her Refraction:
* Multiple attackers thanks to summoned units or clones: Meepo, Witch Doctor, Lycan, Enigma, Shadow Shaman
* Multiple attackers thanks to illusions: Phantom Lancer, Chaos Knight, Naga Siren (bonus for her 
Ensnare). Also despite the visual effects, Templar Assassin does not spill damage against illusions or buildings, so she is not a really good hero to clean up illusions.
* Weak damage but high tick rate or persist in a long time: Slark, Gyrocopter, Queen of Pain, Shadow Shaman (
Shackles), 
Pugna
Slark
* Weak damage but high tick rate or persist in a long time: Slark, Gyrocopter, Queen of Pain, Shadow Shaman (Shackles), Pugna
* Heroes that can quickly deal damage to her, regardless of how weak they are, can easily break through her Refraction:
* Multiple attackers thanks to summoned units or clones: Meepo, Witch Doctor, Lycan, Enigma, Shadow Shaman
* Multiple attackers thanks to illusions: Phantom Lancer, Chaos Knight, Naga Siren (bonus for her Ensnare). Also despite the visual effects, Templar Assassin does not spill damage against illusions or buildings, so she is not a really good hero to clean up illusions.
* Weak damage but high tick rate or persist in a long time: Slark, Gyrocopter, Queen of Pain, Shadow Shaman (Shackles), Pugna
Additional:
* Dark Pact rips through 
Refraction charges and still steals attributes during Refraction.
* Pounce and Dark Pact will still hit Templar Assassin while she is 
Melded. Since she cannot move, both abilities will be easy for Slark to land.
Juggernaut
[wiki] rating: -1.2 (winrate: 51% pickrate: 19%)Meepo
* Juggernaut's Omnislash is meaningless for Meepo who can share the damage across clones to save other allies.
Slark
* Heroes with escaping and disjointing abilities can be good against Juggernaut: Riki, Queen of Pain, Puck, Storm Spirit, Ember Spirit, Slark etc.
Enchantress
[wiki] rating: -1.0 (winrate: 45% pickrate: 3%)Meepo
* 
Enchantress's 
Untouchable slows down Meepos attacks and 
Impetus can deal heavy pure damage to a single meepo, however once Meepo has closed the gap she is an easy target for Poof.
Slark
* Heroes that can jump on her: Slark, Queen of Pain, Anti-Mage
Meepo
* Meepo can quickly kill Enchantress with a Poof combo, rendering Untouchable useless.
Shadow Demon
[wiki] rating: -1.0 (winrate: 46% pickrate: 3%)Slark
* Heroes with Break abilities will prevent Slark to regenerate and gaining Essence Shift stacks: 
Viper, 
Shadow Demon etc.
Slark
* Heroes who can dispel will be able to remove Shadow Poison before Shadow Demon can build up a big stack, or remove Soul Catcher's debuff to instantly bring the health of affected heroes back to a considerable amount: Abaddon, Slark, Legion Commander, 
Oracle.
Meepo
* Poof will destroy Shadow Demon's illusions created by 
Disruption and quickly escapes from 
Shadow Poison & 
Demonic Purge.
Sniper
[wiki] rating: -1.0 (winrate: 46% pickrate: 6%)Slark
* Slark is a natural Shadow Blade carrier, and with Pounce Sniper has no opportunity to escape or react.
* With Essence Shift and Shadow Dance, Slark will easily win a fight against Sniper.
Additional:
* Sniper is one of the most gankable heroes in the game, and has no defenses when Pounced on by Slark.
Lifestealer
[wiki] rating: -1.0 (winrate: 47% pickrate: 8%)Meepo
* 
Lifestealer is not affected by Earthbind or Poof during 
Rage, making him a difficult target to work around.
Slark
* Dark Pact can be used to remove Open Wounds.
* Shadow Dance allows Slark to attack Lifestealer for its duration without any way for Lifestealer to fight back.
* Slark commonly buys a 
Silver Edge, which can break Lifestealer's Feast, severely diminishing his damage output and lifesteal.
Meepo
* Lifestealer's Rage and Open wounds become useless when Meepo has 4 or more clones, as Ransack will heal Meepo too quickly for Lifestealer to take down.
Ursa
[wiki] rating: -1.0 (winrate: 48% pickrate: 6%)Slark
* Slark can detect early Roshan attempts due to Shadow Dance if he frequently checks the Pit.
* Enrage cannot restore attributes stolen by Essence Shift and will reduce his physical damage output.
* Even if Ursa initiates with Earthshock, Slark can Pounce away or use Dark Pact after Ursa's initiation to avoid Fury Swipes' damage until Earthshock's slow is gone.
Rubick
[wiki] rating: -1.0 (winrate: 48% pickrate: 21%)Slark
* Pounce and Dark Pact together with some attacks can gank Rubick down quickly. Rubick can seldom retaliate because of the strong dispel of Dark Pact. What is more, Rubick is the type of squishy support that Slark exactly wants to gank.
* Though Shadow Dance is a great spell to steal, Slark's untargetable nature and his low cooldown spells prevents Rubick from stealing it.
* Slark usually builds Diffusal Blade which can prevent Rubick to cast his abilities from Spell Steal.
Razor
[wiki] rating: -1.0 (winrate: 49% pickrate: 1%)Slark
* Pounce can easily break Static Link, making it less powerful against him.
* Slark is one of the few heroes who can man fight a Razor, because of Essence Shift.
* Shadow Dance can prevent Razor from killing him and may provide an opportunity to kill Razor due to it preventing Razor from attacking Slark.
Legion Commander
[wiki] rating: -1.0 (winrate: 50% pickrate: 14%)Meepo
* When Legion Commander uses 
Duel on one Meepo, he can use his other Meepos to kill her. If he wasn't dueled, he can help the teammate who was duelled to give the teammate the damage instead of Legion Commander.
* However, if Legion Commander picked up an Aghanim's Scepter and she duels one Meepo, that might be the end of Meepo if Legion managed to gather enough damage from previous duels.
Spirit Breaker
[wiki] rating: -1.0 (winrate: 50% pickrate: 6%)Meepo
* Heroes who can stun multiple units at once: 
Dark Willow, Spirit Breaker, 
Slardar, Invoker, and 
Tidehunter.
Meepo
* Earthbind's root prevents/interrupts Charge of Darkness.
* As a single target focused hero without much damage output, Spirit Breaker is ineffective in general against Meepo. Consider upgrading Nether Strike with Aghanim's Scepter to spam AoE stuns against Meepo clones.
Additional:
* Spirit Breaker heavily relies on disabling one enemy at a time therefore rendering him useless against five Meepos at once.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Alchemist
[wiki] rating: -1.0 (winrate: 51% pickrate: 3%)Slark
* Shadow Dance allows Slark to not be targeted by Unstable Concoction, making Alchemist stun himself and making himself vulnerable to the enemy.
* Dark Pact also allows him to just purge off the stun if timed correctly.
* Essence Shift will steal stats over long durations at a time should Alchemist lack the damage to kill Slark.
Necrophos
[wiki] rating: -1.0 (winrate: 52% pickrate: 7%)Meepo
* Necrophos struggles at clearing away durable illusions or summons. Meepo can overwhelm Necrophos with his many duplicates, especially in the later stages of the game, and his Earthbind will prevent Necrophos from getting away, even if he casts Ghost Shroud.
* Meepo's high burst damage from {Ability ID:Poof|Meepo} and {Item ID:Ethereal Blade} can make it difficult for to Necrophos to stay alive, and as Necrophos excels in extended fights, he will not be able to do as much damage as he intends to.
Zeus
[wiki] rating: -1.0 (winrate: 53% pickrate: 14%)Slark
* Heroes with heavy magical nukes will take advantage of Slarks poor HP or force him to use Shadow Dance early: Lina, Lion, Zeus
Slark
* Zeus can deal a huge amount of damage, but he lacks defensive abilities, such as good mobility or resistance. Due to that, he doesn't like to be touched by any means. Heroes with higher damage output and good mobility will often get easily near Zeus and trade damage (eventually causing Zeus's downfall). Such Heroes include: Lycan, Slark, Storm Spirit, 
Spectre and others.
Meepo
* Thundergod's Wrath strikes only the first Meepo.
* Zeus has low mobilty so consecutive Earthbinds are easy to hit and he'll quickly die from Poofs.
Drow Ranger
[wiki] rating: -1.0 (winrate: 53% pickrate: 13%)Slark
* A well-timed Dark Pact can dispel Frost Arrows and Gust, letting Slark engage and escape freely.
* Shadow Dance lets Slark quickly close the gap and deal heavy damage without giving Drow Ranger a chance to retaliate.
* Pounce counteracts Frost Arrows' slow, letting Slark easily pin Drow Ranger down or flee.
Additional:
* Pounce and items like Shadow Blade makes it very difficult for Drow Ranger to keep her distance from Slark, thereby losing her 
Marksmanship bonus.
* 
Gust is rarely enough to keep Slark at bay, as Drow Ranger has no movement abilities and will simply be chased down afterwards.
* Drow Ranger's heavy dependence on agility also makes her significantly weaker after being drained by Essence Shift.
Broodmother
[wiki] rating: -1.0 (winrate: 55% pickrate: 3%)Meepo
* Earthbind prevents Broodmother from escaping Meepo's attacks.
* Poof will quickly clear any nearby spiders.
* Broodmother wants to pick off single target heroes. With Meepo's Divided We Stand, it gets a lot harder once every Meepo Poofs in.
Keeper of the Light
[wiki] rating: -0.6 (winrate: 43% pickrate: 3%)Slark
* Melee carries during the laning phase: Sven, Slark
Meepo
* Heroes that can jump and kill him: Meepo, Clinkz, 
Templar Assassin
Slark
* Heroes with dispels: Legion Commander, Oracle, Slark
Tusk
[wiki] rating: -0.6 (winrate: 48% pickrate: 6%)Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Queen of Pain
[wiki] rating: -0.6 (winrate: 48% pickrate: 15%)Slark
* Both Scream of Pain and Sonic Wave should hit him during his Shadow Dance.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Meepo
* Meepo is the hard counter for Queen of Pain - chain of Earthbinds prevents her from using Blink for a long time, and without any other escape options, Queen of Pain cannot survive several Poofs and attacks.
* Meepo tends to build items with attributes, mitigating Queen of Pain's magical burst.
Additional:
* Chain of Earthbinds prevents her from using 
Blink, allowing Meepo to quickly kill her with Poof and attacks.
* Meepo tends to buy items with attributes, mitigating Queen of Pain's magical burst.
Phantom Assassin
[wiki] rating: -0.6 (winrate: 48% pickrate: 13%)Meepo
* 
Phantom Strike allows Phantom Assassin to jump on his clones.
* Meepo's low health pool can burst down by 
Coup de Grace critical strike.
Slark
* Slark's Pounce allows him to close the gap on Phantom Assassin and prevent her from escaping with Phantom Strike.
* As a hero who always goes for the Silver Edge and 
Abyssal Blade Slark can use it to disable Phantom Assassin and her 
Blur and Coup de Grace, drastically reducing her damage output and ability to evade attacks, and also preventing her from acting.
* Phantom Assassin's Coup de Grace requires Random Number Generation in order to proc, which gives Slark more than enough time to escape and recover himself.
Meepo
* Heroes with high mobility can be prevented from using it to their advantage with Earthbind, even if they pack a dangerous arsenal: Earth Spirit, Ember Spirit, Storm Spirit, Nature's Prophet, Phantom Assassin, Riki, Anti-Mage, Weaver.
* See items and abilities disabled by roots
Pangolier
[wiki] rating: -0.6 (winrate: 48% pickrate: 9%)Meepo
* Shield Crash gains its damage reduction bonus from all Meepo clones, and can be used even when rooted, allowing Pangolier to gain a massive amount of damage reduction (even more than 100%).
* With too many clone running around during combat, it is almost impossible for Meepo to avoid Rolling Thunder or Swashbuckle.
* Still, remember that a lone Pangolier can never escape from a ganking Meepo.
Additional:
* Pangolier's arsenal deals heavy damage in a wide area, make him deadly even for a Meepo with a high magic resistance.
* 
Shield Crash can easily give him a ridiculous 90% damage resistance, resulting in a near unkillable Pangolier in a short amount of time.
* 
Rolling Thunder disrupts Meepo's initiation or escaping.
* 
Swashbuckle can hit all of Meepo clones.
* 
Lucky Shot can disarm Meepo's clones.
Meepo
* Heroes with powerful rooting abilities will disable most of Pangolier's skill, a bonus point if it pierce spell immunity since it will also be able to stop Pangolier during his Rolling Thunder: 
Treant Protector, Meepo, Crystal Maiden, Dark Willow, Underlord, Naga Siren
Slark
* Dark Pact easily purges away both slow and disarm effect from Lucky Shot.
* With Pounce now apply leash to the target, Pangolier is helpless against Slark since both his Swashbuckle and Rolling Thunder will be disabled. Pounce also help Slark to easily escape from Rolling Thunder.
Naga Siren
[wiki] rating: -0.6 (winrate: 48% pickrate: 2%)Meepo
* Meepo can just mess up Naga Siren entirely: His Earthbind is AoE, which can bind her illusions, his Poof is a powerful AoE nuke and will clear her illusions. He is also 2/3/4 Meepos, not one, so her Ensnare will not work efficiently against him.
Snapfire
[wiki] rating: -0.6 (winrate: 49% pickrate: 8%)Meepo
* Heroes with high movement speeds like Pugna and Meepo can run around, to, or away from Snapfire during 
Mortimer Kisses and dodge the projectiles easily due to their slow speed.
* Heroes with mobility spells (such as Queen of Pain's Blink and Clockwerk with 
Hookshot) can easily avoid 
Lil' Shredder and Mortimer Kisses.
* Heroes with high movement speeds like Pugna and Meepo can run around, to, or away from Snapfire during Mortimer Kisses and dodge the projectiles easily due to their slow speed.
Weaver
[wiki] rating: -0.6 (winrate: 50% pickrate: 4%)Meepo
* Heroes with high mobility can be prevented from using it to their advantage with Earthbind, even if they pack a dangerous arsenal: Earth Spirit, Ember Spirit, Storm Spirit, Nature's Prophet, Phantom Assassin, Riki, Anti-Mage, Weaver.
* See items and abilities disabled by roots
Shadow Shaman
[wiki] rating: -0.6 (winrate: 50% pickrate: 6%)Slark
* Nyx Assassin, Bounty Hunter and Slark can all sneak up and kill you, Nyx being particularly deadly. Watch Slark carefully, as he can break either (but not both unless you are making a mistake) of your disables, with Dark Pact and leap out of a serpent ward ring. These heroes, however, rely heavily on escape and are themselves not very durable and none of them can survive a full lockdown with Mass Serpent Ward. Having Sentry Wards can turn you from prey to predator.
Bounty Hunter
[wiki] rating: -0.6 (winrate: 50% pickrate: 5%)Slark
* Slark with Dark Pact
* Heroes that can remove the Track debuff with their skills:
* Abaddon with 
Aphotic Shield and 
Borrowed Time
* 
Huskar with 
Life Break
* Juggernaut with 
Blade Fury
* Legion Commander with 
Press the Attack
* Lifestealer with Rage and 
Infest
* Naga Siren with 
Mirror Image
* 
Omniknight with 
Heavenly Grace
* Oracle with 
Fortune's End and 
False Promise
* Phantom Lancer with 
Doppelganger
* Slark with Dark Pact
* 
Ursa with 
Enrage
* Weaver with 
Time Lapse
* Tidehunter with 
Kraken Shell when damage received reaches the threshold.
Skywrath Mage
[wiki] rating: -0.6 (winrate: 50% pickrate: 7%)Meepo
* 
Skywrath Mage's abilities are single targeted and he can't use Mystic Flare to its fullest potential, since all Meepos spread the damage between them. He also has no disables to prevent Meepo from Poofing to another one (unless he can get 
Ancient Seal off first).
Pugna
[wiki] rating: -0.6 (winrate: 50% pickrate: 6%)Meepo
* Pugna's Nether Ward doesn't really hurt Meepo since he usually buys attribute items to tank up and can be killed very quickly by 4 clones. Decrepify can amplify Poof's damage should Pugna use it to avoid Meepo's right clicking.
Lycan
[wiki] rating: -0.6 (winrate: 50% pickrate: 1%)Slark
* Lycan cannot escape from a Pounce even if he uses 
Shapeshift, and has no disabling abilities to stop Slark.
Visage
[wiki] rating: -0.6 (winrate: 51% pickrate: 1%)Meepo
* Heroes that can overwhelm Visage by sheer number like Chaos Knight, Meepo, Terrorblade and Phantom Lancer.
Undying
[wiki] rating: -0.6 (winrate: 51% pickrate: 6%)Meepo
* Meepo can quickly destroy Tombstone thanks to Divided We Stand.
Batrider
[wiki] rating: -0.4 (winrate: 46% pickrate: 3%)Meepo
* Batrider's Flaming Lasso can become annoying when Batrider has a team nearby to kill the disabled Meepo. His Firefly is also good AoE damage, which when stacked with sticky napalm (which is AoE too and can hit all Meepos), he becomes a very formidable target.
Additional:
* Flaming Lasso is the perfect tool to isolate a single Meepo and focus him.
Slark
* Dark Pact can dispel Flaming Lasso if is used in anticipation, but a Blink initiation from fog can catch the Slark off guard.
* Slark can also take off any Sticky Napalm stacks with Dark Pact in lane.
Pudge
[wiki] rating: -0.4 (winrate: 48% pickrate: 24%)Meepo
* Because only one clone needs to be killed in order to kill Meepo, heroes that excel at singling out enemies can also be a detriment to him, such as Batrider, Beastmaster, Pudge and Clockwerk.
Slark
* Dark Pact dispels Dismember if timed perfectly.
* Pudge's low attack speed and poor agility can be lowered even further by Essence Shift.
* Shadow Dance grants Slark invisibility and a high degree of mobility, which can make Slark a difficult target to hook and also protects him from Pudge's Dismember (including allies with an Aghanim's Scepter).
Silencer
[wiki] rating: -0.4 (winrate: 48% pickrate: 6%)Slark
* Heroes with silencing abilities can be particularly deadly when Slark is trying to escape: Silencer, Death Prophet, Puck, Doom
Slark
* Slark's Dark Pact allows him to dispel Silencer's debuffs.
* Against a carry Silencer, Essence Shift will lower damage from both Glaives of Wisdom and his basic attack.
Void Spirit
[wiki] rating: -0.4 (winrate: 50% pickrate: 12%)Meepo
* 
Void Spirit can dodge Earthbind with 
Dissimilate and 
Astral Step, giving him a good chance to escape. If he gets caught anyways, 
Resonant Pulse allows him to retaliate.
Meepo
* Meepo's Earthbind can easily lockdown Void Spirit.
* Meepo and his clones can easily burst Void Spirit's Resonant Pulse.
Tidehunter
[wiki] rating: -0.4 (winrate: 50% pickrate: 6%)Meepo
* Heroes who can stun multiple units at once: Dark Willow, Spirit Breaker, Slardar, Invoker, and Tidehunter.
Slark
* Dark Pact dispels debuffs from Gush, Anchor Smash and even Ravage if timed correctly.
* Kraken Shell cannot restore attributes stolen by Essence Shift or dispel the leash if he gets Pounced.
Slardar
[wiki] rating: -0.4 (winrate: 51% pickrate: 9%)Meepo
* Heroes who can stun multiple units at once: Dark Willow, Spirit Breaker, Slardar, Invoker, and Tidehunter.
Meepo
* Slardar does not do well against multiple targets, as his only way to damage multiple targets being Slithereen Crush.
* Meepo's Earthbind will root Slardar, making him unable to chase/escape for the time being. Also, Poof's low cooldown and high damage can burst Slardar down rather quickly.
Phantom Lancer
[wiki] rating: 0.0 (winrate: 47% pickrate: 5%)Slark
* Slark has no sustained AoE to fight off Phantom Lancer's illusions as they continually spawn.
* Spirit Lance can give vision of Slark by spawning an illusion, making it harder for him to juke and gain the passive bonus from Shadow Dance.
* Phantom Rush helps Phantom Lancer chase down Slark if he tries to escape with Pounce.
Additional:
* Slark has no sustained AoE to deal with Phantom Lancer's many illusions.
* Doppelganger lets Phantom Lancer dodge Dark Pact and Pounce, and partially wastes the duration of Shadow Dance.
* 
Spirit Lance can give vision of Slark via spawning an illusion, making it harder for him to juke and gain the passive bonus from Shadow Dance.
* 
Phantom Rush helps Phantom Lancer chase down Slark when he jumps away with Pounce.
Meepo
* Poof from multiple Meepos will destroy illusions quickly.
* Earthbind's area root can catch Phantom Lancer in a group of illusions and prevent him from using Doppelganger for a long time.
Additional:
* Poof will destroy Phantom Lancer's illusions within a short time.
* Earthbind prevents Phantom Lancer from using Doppelganger.
Medusa
[wiki] rating: 0.0 (winrate: 48% pickrate: 3%)Meepo
* Poof won't damage Medusa and he can Gaze an entire flock of Meepos.
* Mystic Snake will easily become the bane of Meepo early game.
Slark
* Medusa cannot chase Slark in any way and has no disable beyond her ultimate, making her unable to stop him getting away and regenerating before coming back to finish her off.
* Essence Shift removes 1 of every attribute, lowering Medusa's mana pool's cap and leaving her much more vulnerable in prolonged fights.
Additional:
* Medusa is especially vulnerable to Essence Shift, as both strength and intelligence contribute to her effective HP, while agility contributes to her damage.
* Dark Pact when timed right can be used to dispel Stone Gaze right after it petrifies Slark, allowing him to keep attacking Medusa throughout the duration.
Magnus
[wiki] rating: 0.0 (winrate: 49% pickrate: 14%)Meepo
* Heroes with powerful area-of-effect disables can initiate on Meepo and his clones and shut him down, such as Enigma, Invoker, Magnus, Puck, and Sand King.
Additional:
* Meepo is vulnerable to area damage and disables from Magnus himself as well as his team through Empower.
Slark
* Heroes with blink or movement abilities, which are disabled by Pounce's leash: Anti-Mage, Earth Spirit, Faceless Void, Magnus, Mirana, Monkey King, Morphling, Pangolier, Phantom Assassin, Phoenix, Puck, Queen of Pain, Riki, Sand King, Spirit Breaker, Timbersaw, Tusk.
Winter Wyvern
[wiki] rating: 0.0 (winrate: 49% pickrate: 6%)Meepo
* 
Winter's Curse in late game is pretty much the end for Meepo or any of his nearby allies. Natural counter for Winter's Curse like 
Linken's Sphere or 
Lotus Orb is meaningless to her if she can land it on one of your clones.
Additional:
* Meepo's clones usually gets grouped in teamfight making any of them ideal target for Winter's Curse, forcing Meepo to literally kill himself. Also unlike another hero he cannot protect himself with Linken's Sphere.
Slark
* Arctic Burn and Splinter Blast debuffs are dispellable with Dark Pact. Arctic Burn is also no escape against Pounce.
* Cold Embrace just gives Slark free Essence Shift stacks. He also relies mostly on magic damage early in the game.
Beastmaster
[wiki] rating: 0.0 (winrate: 51% pickrate: 2%)Meepo
* Because only one clone needs to be killed in order to kill Meepo, heroes that excel at singling out enemies can also be a detriment to him, such as Batrider, Beastmaster, Pudge and Clockwerk.
Slark
* Heroes with strong dispels can remove Primal Roar's stun: Abaddon, Slark, Oracle.
Enigma
[wiki] rating: 0.0 (winrate: 51% pickrate: 3%)Meepo
* Heroes with powerful area-of-effect disables can initiate on Meepo and his clones and shut him down, such as Enigma, Invoker, Magnus, Puck, and Sand King.
Slark
* Enigma is fragile, and lacks escapes, being dependent on 
Blink Dagger for mobility. Ganking Heroes or Heroes with burst damage will likely kill him before he can do anything. Such Heroes include: Lina, Lion, Puck, Slark, Nyx Assassin, etc.
Warlock
[wiki] rating: 0.0 (winrate: 51% pickrate: 8%)Meepo
* 
Fatal Bonds links the Meepos together.
Slark
* 
Upheaval does not interrupt Slark too much, as he can just Pounce out of the area.
* Fatal Bonds and 
Shadow Word can be dispelled by Dark Pact.
Venomancer
[wiki] rating: 0.0 (winrate: 52% pickrate: 12%)Meepo
* Aggressively Poofing and Earthbinding is not going to end well against Venomancer, as he will be an easy target for 
Poison Nova.
* Venomancer constant slows greatly reduce Meepo's mobility.
Slark
* Dark Pact can dispel Venomous Gale and Poison Sting.
* Shadow Dance allows Slark heightened regeneration when out of vision making DoTs effects less threatening.
Meepo
* Every Meepo clone adds to Thirst's bonuses.
* Bloodseeker can chase down retreating clones when Meepo tries to cycle weaker clones away from combat.
Slark
* Thirst prevents Slark from healing with
Shadow Dance.
Pounce.
Dark Pact cannot dispel Rupture, preventing Slark from escaping ganks.
Thirst makes Slark visible while at low health, canceling out Shadow Dance's passive. For this reason, Bloodseeker is usually considered the hardest counter to Slark.
Rupture cannot be dispelled by Dark Pact, and using Pounce while affected by it will cause Slark to take damage.
* Rupture will deal damage during
*
Additional:
*
*