Rubick
[wiki] rating: 1.6 (winrate: 47% pickrate: 17%)Outworld Destroyer
[wiki] rating: 1.0 (winrate: 53% pickrate: 17%)Brewmaster
* Outworld Destroyer's pure damage will mop up Primal Split's units very quickly.
Shadow Shaman
[wiki] rating: 1.0 (winrate: 52% pickrate: 16%)Brewmaster
* 
Hex's instant cast time will force Brewmaster into the awkward situation of needing some form of spell immunity or block to prevent being immediately hex upon blinking in, or wait until Shaman has used all his crowd control before entering a fight.
* Brewmaster also has no defense against Shadow Shaman lockdowns.
Bane
[wiki] rating: 1.0 (winrate: 51% pickrate: 3%)Brewmaster
* After Brewmaster has committed Thunder Clap and Cinder Brew to gank, Bane can use 
Nightmare on Brewmaster to wait out the debuffs, and might even turn the tables by buying time for allied reinforcements.
* Bane can also prevent Brewmaster from using Primal Split with his long disables.
Death Prophet
[wiki] rating: 1.0 (winrate: 51% pickrate: 4%)Brewmaster
* 
Exorcism kills Primal Split's units very quickly.
Tidehunter
[wiki] rating: 1.0 (winrate: 51% pickrate: 9%)Sand King
* 
Ravage, being an AoE disable, cancels Epicenter's channeling from a long range, limiting his potential to counter-initiate.
* This can be remedied, however, by first using a 
Black King Bar, then channel Epicenter, then finally initiate with 
Blink Dagger.
Lion
[wiki] rating: 1.0 (winrate: 50% pickrate: 16%)Brewmaster
* 
Hex's instant cast time will force Brewmaster into the awkward situation of needing some form of spell immunity or block to prevent being immediately hex upon blinking in, or wait until Lion has used all his crowd control before entering a fight. His direct magic burst also makes Brewmaster's Drunken Brawler worthless versus Lion.
Phoenix
[wiki] rating: 1.0 (winrate: 50% pickrate: 9%)Sand King
* Sand King has nothing to deal with 
Supernova, as none of his spells are effective.
* The damage-over-time abilities of Phoenix disable Sand King's Blink Dagger very often.
Weaver
[wiki] rating: 1.0 (winrate: 50% pickrate: 8%)Brewmaster
* Brewmaster is slow and has low armor, making his laning stage very difficult against Geminate Attack.
* Apart from the slow moving 
Hurl Boulder, which can be disjointed, he has no control to catch Weaver.
Skywrath Mage
[wiki] rating: 1.0 (winrate: 50% pickrate: 6%)Brewmaster
* 
Ancient Seal's instant cast time will often silence Brewmaster before he can do anything.
* Brewmaster also has no defense against Skywrath Mage's massive magical damage.
Earth Spirit
[wiki] rating: 1.0 (winrate: 49% pickrate: 8%)Sand King
* 
Boulder Smash will push Sand King out of Sand Storm to reveal his position or an activated Epicenter off of Earth Spirit's allies, potentially wasting his combo
* 
Rolling Boulder and 
Geomagnetic Grip allow Earth Spirit to easily stun and silence Sand King and interrupt the channeling of Epicenter, completely ruining his initiation.
Zeus
[wiki] rating: 1.0 (winrate: 48% pickrate: 9%)Sand King
* 
Zeus usually stays at the back in teamfights and it is hard for Sand King to find Zeus and knock him down before Zeus deals his damage.
* All of Zeus' abilities, especially 
Thundergod's Wrath, disables Sand King's Blink Dagger, effectively reducing Sand King's initiation and counter-initiation potential.
* 
Lightning Bolt deals damage to Sand King in Sand Storm and reveals him. It also interrupts channeling of Epicenter.
Silencer
[wiki] rating: 1.0 (winrate: 48% pickrate: 7%)Sand King
* Both 
Arcane Curse and 
Last Word punishes casters with spammable spells such as Sand King.
* As a strength caster, 
Intelligence Steal reduces Sand King's mana pool even more.
* 
Global Silence silences Sand King, effectively reducing Sand King's initiation and counter-initiation potential. It can also interrupt channeling of Epicenter.
Bristleback
[wiki] rating: 1.0 (winrate: 46% pickrate: 9%)Sand King
* Quill Spray will hit Sand King inside 
Sand Storm, damaging him and putting Sand King's Blink Dagger on cooldown, preventing him from escaping.
* 
Epicenter's numerous damage ticks will trigger Bristleback's passive repeatedly during teamfights.
Kunkka
[wiki] rating: 1.0 (winrate: 44% pickrate: 4%)Sand King
* Ghostship helps your team soak up damage from Epicenter, especially if he initiates during the battle.
* 
Sand King can't dodge X Marks the Spot - Torrent combo by his abilities. Torrent drags him out of his Sand Storm
Queen of Pain
[wiki] rating: 0.6 (winrate: 48% pickrate: 9%)Brewmaster
* Blinking heroes like 
Anti-Mage or 
Queen of Pain can often chase down an injured Brewmaster after his ultimate expires.
Anti-Mage
[wiki] rating: 0.6 (winrate: 47% pickrate: 14%)Brewmaster
* Blinking heroes like Anti-Mage or Queen of Pain can often chase down an injured Brewmaster after his ultimate expires.
Templar Assassin
[wiki] rating: -2.0 (winrate: 51% pickrate: 5%)Brewmaster
* The three Primal Split brewlings all attacking Templar Assassin at once will remove her 
Refraction quickly, especially with Fire's Permanent Immolation.
* Templar Assassin has no way to stop Brewmaster from using Primal Split by herself, and may get unlucky and miss her 
Meld if trying to burst him during her ally's disable.
Sand King
* Sand King can quickly remove her Refraction with his Sand Storm.
* Once Refraction is down, she is very vulnerable to Epicenter's high magic damage.
Nature's Prophet
[wiki] rating: -1.6 (winrate: 45% pickrate: 7%)Sand King
* Sand King has many tools to deal with Nature's Prophet's treants.
* Sand King also can interrupt Teleportation with 
Burrowstrike.
Additional:
* With Caustic Finale, Sand King can easily kill the treants from 
Nature's Call.
* Burrowstrike allows Sand King to prevent Nature's Prophet from using 
Teleportation inside of his 
Sprout.
Brewmaster
* Heroes who produce many summons will have a hard time against Storm's Dispel Magic during teamfight: 
Broodmother, 
Enigma, 
Nature's Prophet.
Phantom Assassin
[wiki] rating: -1.6 (winrate: 46% pickrate: 15%)Sand King
* Phantom Assassin relies on her 
Blur to stay alive, but is very vulnerable to Sand King's heavy magic damage.
* With Burrowstrike, Sand King can often catch Phantom Assassin before she can use her Black King Bar.
* Sand King can dodge 
Stifling Dagger with Sandstorm.
* Phantom Assassin has a hard time killing Sand King because of his high mobility.
Brewmaster
* In general, Brewmaster's Cinder Brew and Thunder Clap makes him good against physical damage carries: 
Ursa, 
Clinkz, 
Faceless Void, 
Troll Warlord, 
Templar Assassin, 
Phantom Assassin.
Chaos Knight
[wiki] rating: -1.6 (winrate: 49% pickrate: 3%)Sand King
* Because of his massive AoE damage, Sand King is very effective against illusion heroes: 
Chaos Knight, 
Phantom Lancer, 
Terrorblade,...
Additional:
* Sand King's massive area damage output, particularly Epicenter, allows him to quickly take down Chaos Knight and his illusions.
* He can apply 
Caustic Finale to illusions with attacks for extra damage.
Brewmaster
* Storm's Dispel Magic combined with Thunder Clap deals high damage against Chaos Knight's illusions even in the late game.
* Chaos Knight's reliance on physical damage is easily hindered by Drunken Brawler.
* Chaos Knight's lack of area effect and mobility makes him easily overwhelmed by Primal Split.
Additional:
* 
Dispel Magic from {U:Storm} can instantly kill the Phantasm army early game and can still deal a lot of damage to them late game, revealing the real Chaos Knight.
Ursa
[wiki] rating: -1.6 (winrate: 51% pickrate: 16%)Sand King
* Heroes that rely on slows to get kills: 
Lifestealer, 
Night Stalker, Ursa,...
Brewmaster
* If Ursa uses 
Enrage Brewmaster can use Cyclone to render him harmless during his ultimate.
* Brewmaster has two spells to slow down Ursa, allowing his team to kite around him easily.
Broodmother
[wiki] rating: -1.6 (winrate: 56% pickrate: 2%)Brewmaster
* Heroes who produce many summons will have a hard time against Storm's Dispel Magic during teamfight: Broodmother, Enigma, Nature's Prophet.
Sand King
* Caustic Finale allows Sand King to easily kill Broodmother's Spiderlings throughout the game.
* Sand King can usually catch a split pushing Broodmother with Blink Dagger and Burrowstrike.
Additional:
* Burrowstrike can be used as an escape or initiation against Broodmother.
* Sand Storm quickly kills any spiderlings caught inside if Sand King can manage to stun them.
Clinkz
[wiki] rating: -1.2 (winrate: 52% pickrate: 5%)Brewmaster
* In general, Brewmaster's Cinder Brew and Thunder Clap makes him good against physical damage carries: Ursa, Clinkz, Faceless Void, Troll Warlord, Templar Assassin, Phantom Assassin.
Sand King
* Sand King is a strong ganker, allowing him to shut down squishy heroes in the early game: Phantom Assassin, Clinkz, 
Sniper, 
Enchantress,...
Meepo
[wiki] rating: -1.0 (winrate: 46% pickrate: 1%)Sand King
* 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.
Chen
[wiki] rating: -1.0 (winrate: 46% pickrate: 0%)Sand King
* Burrowstrike and Sand Storm will deal a large amount of damage to Chen's creeps.
* Caustic Finale will quickly clear Chen's creeps at low health.
Lone Druid
[wiki] rating: -1.0 (winrate: 48% pickrate: 1%)Brewmaster
* Brewmaster can make the Spirit Bear a much smaller threat with Cinder Brew.
* Cyclone removes the bear from a fight so that his team can easily focus on the hero.
* While most heroes would be worn down by a Spirit Bear 
Radiance in the time it takes to kill Lone Druid, Brewmaster is protected in Primal Split.
Phantom Lancer
[wiki] rating: -1.0 (winrate: 50% pickrate: 9%)Sand King
* All of Sand King's abilities deal AoE damage.
* Epicenter will usually eliminate all illusions in one cast. Phantom Lancer lacks any disables to stop the channelling.
Omniknight
[wiki] rating: -1.0 (winrate: 51% pickrate: 1%)Brewmaster
* Dispel Magic from {U:Storm} instantly removes Guardian Angel from Omniknight's allies in its radius of effect.
Huskar
[wiki] rating: -1.0 (winrate: 51% pickrate: 3%)Brewmaster
* Brewmaster can use Cyclone to disable Huskar's healer for much longer than most other heroes can, to make Huskar vulnerable.
* Huskar has no way to stop Brewmaster from using Primal Split by himself, but can cut a good amount of his high health away if Huskar's team wants to burst Brewmaster down during a different disable.
Monkey King
[wiki] rating: -1.0 (winrate: 51% pickrate: 17%)Brewmaster
* 
Cinder Brew and 
Drunken Brawler makes it hard for Monkey King to stack Jingu Mastery.
* 
Cyclone can remove Monkey king for 6 seconds if his allies lack dispels.
* Dispel Magic can dispel Jingu Mastery's bonuses.
Elder Titan
[wiki] rating: -1.0 (winrate: 52% pickrate: 1%)Brewmaster
* {U:Earth} has passive 
Spell Immunity, allowing him to walk into the Echo Stomp radius to stun Elder Titan with his Hurl Boulder.
* {U:Storm}'s Cyclone can cancel the channeling of Echo Stomp and take Elder Titan out of the fight for {show:A|Storm|Cyclone|value2} seconds.
Ancient Apparition
[wiki] rating: -1.0 (winrate: 52% pickrate: 9%)Brewmaster
* 
Primal Split makes Brewmaster invulnerable for the duration, rendering effects of Cold Feet and Ice Blast useless.
* Dispel Magic can dispel Cold Feet from allies.
* Brewmaster can easily run Ancient Apparition down with the slow from 
Thunder Clap and Cinder Brew.
Abaddon
[wiki] rating: -1.0 (winrate: 53% pickrate: 4%)Brewmaster
* Dispel Magic can remove Abaddon's 
Aphotic Shield or 
Curse of Avernus on an allied hero.
* Cyclone's lengthy duration wastes much of 
Borrowed Time's duration.
Additional:
* {U:Storm} can use Cyclone on Abaddon when he activates Borrowed Time, wasting its duration.
* Drunken Brawler and Thunder Clap hinder Abaddon from applying Curse of Avernus' silence on him.
Lycan
[wiki] rating: -1.0 (winrate: 55% pickrate: 4%)Brewmaster
* Brewmaster can waste a large portion of Lycan's ultimate by putting him in Cyclone.
* Lycan has no way to stop Brewmaster from using Primal Split by himself.
* Lycan's team often tries to push towers as a group, and Brewmaster excels at winning teamfights while trying to defend a tower.
Enchantress
[wiki] rating: -0.6 (winrate: 40% pickrate: 1%)Sand King
* Sand King is a strong ganker, allowing him to shut down squishy heroes in the early game: Phantom Assassin, Clinkz, Sniper, Enchantress,...
Faceless Void
[wiki] rating: -0.6 (winrate: 41% pickrate: 4%)Brewmaster
* In general, Brewmaster's Cinder Brew and Thunder Clap makes him good against physical damage carries: Ursa, Clinkz, Faceless Void, Troll Warlord, Templar Assassin, Phantom Assassin.
Additional:
* Thunder Clap and Drunken Brawler prevent Faceless Void from maximizing his damage potential in fights.
* Cyclone disables Faceless Void during Chronosphere.
Magnus
[wiki] rating: -0.6 (winrate: 46% pickrate: 4%)Sand King
* Any hero who can counter-initiate in anticipation without getting caught in Reverse Polarity: 
Sven, 
Omniknight, Enigma, 
Luna, 
Naga Siren, 
Mars, 
Jakiro, 
Venomancer, 
Elder Titan, Faceless Void, 
Rubick, 
Keeper of the Light, 
Pugna, 
Invoker, 
Spectre, 
Alchemist, 
Treant Protector, 
Lina, 
Oracle, Zeus, 
Shadow Shaman, 
Phoenix, 
Razor, 
Huskar, 
Batrider, 
Kunkka, 
Tidehunter, 
Wraith King, Sand King.
Sniper
[wiki] rating: -0.6 (winrate: 48% pickrate: 6%)Sand King
* Sand King is a strong ganker, allowing him to shut down squishy heroes in the early game: Phantom Assassin, Clinkz, Sniper, Enchantress,...
Terrorblade
[wiki] rating: -0.6 (winrate: 48% pickrate: 4%)Sand King
* Because of his massive AoE damage, Sand King is very effective against illusion heroes: Chaos Knight, Phantom Lancer, Terrorblade,...
Dragon Knight
[wiki] rating: -0.6 (winrate: 48% pickrate: 3%)Sand King
* Heroes with no mobility will take some good damage from Sand King's spells: 
Dragon Knight, Jakiro, Pugna, 
Earthshaker,...
Disruptor
[wiki] rating: -0.6 (winrate: 49% pickrate: 9%)Brewmaster
* 
Brewmaster with Primal Split
* Heroes that can dodge Glimpse:
* 
Puck with 
Phase Shift
* 
Riki with 
Tricks of the Trade
* Phantom Lancer with 
Doppelganger
* 
Ember Spirit with 
Sleight of Fist and 
Activate Fire Remnant
* Chaos Knight with 
Phantasm
* Naga Siren with 
Mirror Image
* 
Tusk with 
Snowball
* 
Juggernaut with 
Omnislash
* Brewmaster with Primal Split
* Lifestealer with 
Infest
* Phoenix with Supernova
Earthshaker
[wiki] rating: -0.6 (winrate: 50% pickrate: 15%)Sand King
* Heroes with no mobility will take some good damage from Sand King's spells: Dragon Knight, Jakiro, Pugna, Earthshaker,...
Jakiro
[wiki] rating: -0.6 (winrate: 50% pickrate: 10%)Sand King
* Heroes with no mobility will take some good damage from Sand King's spells: Dragon Knight, Jakiro, Pugna, Earthshaker,...
Naga Siren
[wiki] rating: -0.6 (winrate: 51% pickrate: 2%)Sand King
* Sand King and Phoenix has many tools to deal with a crowd of Heroes, which will work well against a crowd of illusions.
Troll Warlord
[wiki] rating: -0.6 (winrate: 52% pickrate: 9%)Brewmaster
* In general, Brewmaster's Cinder Brew and Thunder Clap makes him good against physical damage carries: Ursa, Clinkz, Faceless Void, Troll Warlord, Templar Assassin, Phantom Assassin.
Wraith King
[wiki] rating: -0.6 (winrate: 52% pickrate: 18%)Brewmaster
* Heroes with area dispel can kill multiple skeletons at once: Brewmaster, Oracle.
Night Stalker
[wiki] rating: -0.6 (winrate: 53% pickrate: 5%)Sand King
* Heroes that rely on slows to get kills: Lifestealer, Night Stalker, Ursa,...
Enigma
[wiki] rating: -0.6 (winrate: 55% pickrate: 6%)Brewmaster
* Heroes who produce many summons will have a hard time against Storm's Dispel Magic during teamfight: Broodmother, Enigma, Nature's Prophet.
Slark
[wiki] rating: -0.4 (winrate: 47% pickrate: 13%)Sand King
* 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.
Sand King
* 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.
Nyx Assassin
[wiki] rating: -0.4 (winrate: 54% pickrate: 14%)Sand King
* Deals damage over time: Venomancer, Huskar, Ember Spirit, 
Dark Seer, Sand King, 
Doom
* The nature of some abilities turn them into an easy target for a turnover from Spiked Carapace:
* Slow-moving projectiles: 
Skywrath Mage, 
Tinker, 
Necrophos
* Large area-of-effect with delay or require channeling: Enigma, 
Crystal Maiden, Invoker, 
Shadow Fiend, Pugna, Keeper of the Light
* Deals damage over time: Venomancer, Huskar, Ember Spirit, Dark Seer, Sand King, Doom
Brewmaster
* Cyclone from Storm in Primal Split can waste Nyx's Spiked Carapace, since its duration is shorter than the Cyclone's.
Lifestealer
[wiki] rating: 0.0 (winrate: 48% pickrate: 5%)Sand King
* Lifestealer's Rage negates Sand King's spells which do magical damage.
Sand King
* Heroes that rely on slows to get kills: Lifestealer, Night Stalker, Ursa,...
Pugna
[wiki] rating: 0.0 (winrate: 53% pickrate: 4%)Sand King
* Pugna's 
Nether Ward damages Sand King when he channels Epicenter, preventing him from using Blink Dagger afterward.
Sand King
* Heroes with no mobility will take some good damage from Sand King's spells: Dragon Knight, Jakiro, Pugna, Earthshaker,...
Sand King
* Burrowstrike is one of the best and easiest steals for Rubick and Sand King should be careful when playing against him - it's much better to give away Sand Storm.
Brewmaster
* Heroes with strong team-fight abilities (especially ultimates) like
Tidehunter, 
Brewmaster, 
Death Prophet, etc.