Timbersaw
[wiki] rating: 2.0 (winrate: 50% pickrate: 7%)Lich
[wiki] rating: 2.0 (winrate: 49% pickrate: 12%)Dragon Knight
* Lich's constant slows with 
Frost Blast and 
Chain Frost will slow Dragon Knight to a crawl, especially in a crowded teamfight.
Chaos Knight
* Chain Frost can eliminate Chaos Knight's 
Phantasm army, especially after he clumped up using 
Reality Rift.
* Frost Shield will heavily reduce his army's effectiveness.
Additional:
* Lich's Chain Frost, especially after obtaining its respective talent that provides unlimited bounces, can take out all of Chaos Knight's illusions quickly.
* An 
Aghanim's Scepter-upgraded 
Sinister Gaze can hypnotize Chaos Knight and his illusions while also draining his already low mana pool.
Bristleback
[wiki] rating: 2.0 (winrate: 45% pickrate: 7%)Chaos Knight
* Quill Spray quickly destroys Chaos Knight's Phantasms.
Dragon Knight
* 
Viscous Nasal Goo slows down Dragon Knight and lowers armor, locking him down and making him more vulnerable.
Omniknight
[wiki] rating: 1.6 (winrate: 50% pickrate: 3%)Dragon Knight
* Heroes who rely strongly on melee physical damage will fare badly against Omniknight's Guardian Angel: 
Sven, 
Phantom Assassin, 
Juggernaut, 
Dragon Knight, 
Lycan, 
Ursa, 
Troll Warlord
Chaos Knight
* Phantasms can be easily killed with Purification.
* Heavenly Grace dispels the stun from 
Chaos Bolt and the armor reduction from Reality Rift.
* Guardian Angel works well against Chaos Knight's overwhelming reliance on physical burst damage.
Additional:
* 
Purification heals a teammate targeted by Reality Rift and heavily damages Chaos Knight and his illusions in the process.
* 
Guardian Angel blocks all of Chaos Knight's damage for a duration.
Gyrocopter
[wiki] rating: 1.6 (winrate: 48% pickrate: 3%)Dragon Knight
* Heroes that relies on armor or other type of physical damage negation are easy for Gyrocopter to take down during the early game with his magical damage: 
Axe, Dragon Knight, Sven.
Chaos Knight
* Flak Cannon destroys Chaos Knight's illusions very quickly.
Outworld Destroyer
[wiki] rating: 1.6 (winrate: 45% pickrate: 2%)Chaos Knight
* Illusion based heroes (like 
Chaos Knight and 
Terrorblade) can't use their illusion beneficially against Sanity's Eclipse's high AoE burst damage.
Dragon Knight
* 
Arcane Orb's constant pure damage output is devastating to Dragon Knight.
* Dragon Knight's relatively low mana pool leads to heavy damage from 
Sanity's Eclipse, which also bypasses his armor.
Sand King
[wiki] rating: 1.2 (winrate: 52% pickrate: 10%)Chaos Knight
* 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.
Dragon Knight
* Heroes with no mobility will take some good damage from Sand King's spells: Dragon Knight, 
Jakiro, 
Pugna, 
Earthshaker,...
Pangolier
[wiki] rating: 1.2 (winrate: 51% pickrate: 7%)Chaos Knight
* Heroes who are illusion based, or even heroes who frequently build Manta Style can be cleared quickly by Pangolier's high damage, or lose their damage ouput because of Lucky Shot: Chaos Knight, 
Naga Siren
Dragon Knight
* Heroes who rely on skills to become a heavy hitter in a certain amount of time can waste their timing because of a lucky Lucky Shot's disarm: Terrorblade, Sven, 
Clinkz, 
Windranger, 
Alchemist, Dragon Knight, 
Legion Commander
Monkey King
[wiki] rating: 1.0 (winrate: 54% pickrate: 18%)Chaos Knight
* 
Wukong's Command and 
Boundless Strike combo can easily cause havoc on Chaos Knight by destroying all of his powerful illusions.
* Chaos Knight without Phantasm cannot deal with 
Jingu Mastery at all.
Enigma
[wiki] rating: 1.0 (winrate: 53% pickrate: 4%)Chaos Knight
* The area of effect damage from Midnight Pulse and Black Hole help deal with Chaos Knight's illusions.
Additional:
* 
Black Hole usually catches Chaos Knight with all his illusions.
* 
Midnight Pulse deals damage based on max health, quickly killing Phantasm illusions.
Abaddon
[wiki] rating: 1.0 (winrate: 53% pickrate: 3%)Chaos Knight
* Abaddon could punish Chaos Knight for using Phantasm and Reality Rift combo on him with his 
Aphotic Shield. Additionally, it provides extra protection against Chaos Knight's potential to take Abaddon down quickly.
* Furthermore, Abaddon's 
Borrowed Time makes it utterly impossible to burst Abaddon down.
Puck
[wiki] rating: 1.0 (winrate: 52% pickrate: 14%)Chaos Knight
* Puck's area of effect nukes in the form of 
Illusory Orb and 
Waning Rift clears Phantasm illusions from the early game to mid game.
* 
Phase Shift can be used to disjoint Chaos Bolt.
Tidehunter
[wiki] rating: 1.0 (winrate: 52% pickrate: 7%)Chaos Knight
* 
Ravage damages and disables Chaos Knight's army.
* 
Anchor Smash deals respectable area damage at early levels and lowers Chaos Knight's damage.
* 
Kraken Shell dispels Chaos Bolt and Reality Rift while providing protection from damage.
Ancient Apparition
[wiki] rating: 1.0 (winrate: 52% pickrate: 8%)Dragon Knight
* 
Cold Feet and 
Ice Vortex both hinder Dragon Knight's movement greatly during teamfights.
* 
Ice Blast ignores Dragon Knight's armor and kills him prematurely.
Winter Wyvern
[wiki] rating: 1.0 (winrate: 51% pickrate: 5%)Chaos Knight
* 
Cold Embrace protects targets of Reality Rift.
* 
Winter's Curse turns Phantasm illusions against Chaos Knight or a teammate.
* 
Splinter Blast deals decent area damage to Phantasm illusions.
* 
Arctic Burn's percentage-based damage quickly wears down Chaos Knight's health.
Additional:
* Winter Wyvern can make Chaos Knight's illusions attack the real one, provided the player knows who it is.
* Alternatively, Winter's Curse can make Chaos Knight and all his illusions attack one of his allies.
* Cold Embrace protects ally who is focused by Chaos Knight.
* Splinter Blast deals decent area damage to Chaos Knight's illusions.
Pugna
[wiki] rating: 1.0 (winrate: 51% pickrate: 4%)Chaos Knight
* 
Decrepify turns the target ethereal, protecting them from Chaos Knight's and his illusions' attacks.
* 
Life Drain instantly destroys illusions. It can effectively negate Phantasm when upgraded with Aghanim's Scepter.
* 
Nether Blast quickly clears out illusions and can harass Chaos Knight in lane.
Jakiro
[wiki] rating: 1.0 (winrate: 49% pickrate: 11%)Chaos Knight
* With his AoE damage, Jakiro can easily kill Chaos Knight's Phantasm illusions.
* Chaos Knight usually doesn't buy a 
Black King Bar, making him vulnerable to an Ice Path into Macropyre combination.
Additional:
* 
Ice Path and 
Macropyre punish Reality Rift with a long stun and heavy damage across all illusions.
Brewmaster
[wiki] rating: 1.0 (winrate: 49% pickrate: 2%)Chaos Knight
* 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.
Axe
[wiki] rating: 1.0 (winrate: 49% pickrate: 10%)Chaos Knight
* Berserker's Call and Counter Helix makes short work of Chaos Knight's Phantasms.
Additional:
* 
Berserker's Call allows Axe to lock down Chaos Knight and his illusions.
* 
Counter Helix combined with 
Blade Mail clears illusions out in no time.
Earthshaker
[wiki] rating: 1.0 (winrate: 49% pickrate: 10%)Chaos Knight
* Echo Slam's damage potential increases due to Chaos Knight's Phantasm illusions.
Additional:
* 
Echo Slam will deal a colossal amount of damage to your army, as will 
Fissure at lower levels.
* The area stuns from 
Aftershock will always slow down your illusions, since they can't have spell immunity.
Ember Spirit
[wiki] rating: 1.0 (winrate: 47% pickrate: 9%)Chaos Knight
* Ember Spirit is evasive and can dodge close encounters with melee heroes like Chaos Knight. Ember Spirit can't be caught with the slow from Reality Rift, and Flame Guard and Sleight of Fist can bring Phantasm's illusions down quickly.
Kunkka
[wiki] rating: 1.0 (winrate: 46% pickrate: 4%)Chaos Knight
* Tidebringer, Torrent and Ghostship destroys Chaos Knight's Phantasm army all through the game.
Sven
[wiki] rating: 1.0 (winrate: 42% pickrate: 2%)Chaos Knight
* Great Cleave is very effective against Chaos Knight's illusions.
* Storm Hammer's radius can catch all of Chaos Knight's illusions at once, especially after Reality Rift.
* Warcry shields Sven and his teammates against Chaos Knight's burst physical damage.
Additional:
* Sven's shorter cast time allows him to use 
Storm Hammer on Chaos Knight and his illusions before he can cast Chaos Bolt.
* 
Warcry's armor bonus counteracts Reality Rift's slow and reduces Chaos Knight's damage output.
* 
Great Cleave and 
God's Strength devastates Phantasm illusions.
Underlord
[wiki] rating: 0.6 (winrate: 54% pickrate: 8%)Dragon Knight
* 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.
Dark Seer
[wiki] rating: 0.6 (winrate: 51% pickrate: 3%)Chaos Knight
* Heroes that rely on illusions will suffer against Ion Shell, which kills them very quickly: Phantom Lancer, Chaos Knight, Naga Siren, Meepo.
* Heroes that rely on illusions typically spawn very strong illusions inside your Wall of Replica that you should use against them or their team.
Phoenix
[wiki] rating: 0.6 (winrate: 51% pickrate: 10%)Chaos Knight
* Illusion-based heroes such as Naga Siren or Chaos Knight are vulnerable to Phoenix's DPS and attack speed slow, as their illusions, no matter how many, will be unable to deal enough damage to actually be a threat, and they will all be completely useless against the Supernova.
Venomancer
[wiki] rating: 0.6 (winrate: 51% pickrate: 5%)Dragon Knight
* In general, heroes that can slow down Dragon Knight's movement speed will do well against him. This includes 
Venomancer and others in addition to the heroes mentioned above.
Elder Titan
[wiki] rating: 0.6 (winrate: 49% pickrate: 1%)Dragon Knight
* 
Elder Titan's 
Natural Order completely nullifies Dragon Knight's high armor.
Windranger
[wiki] rating: 0.6 (winrate: 49% pickrate: 16%)Chaos Knight
* Heroes who rely on illusions can be tagged by Focus Fire: Chaos Knight, Terrorblade.
Lion
[wiki] rating: 0.6 (winrate: 49% pickrate: 15%)Chaos Knight
* One of Lion's level 20 talents lets Mana Drain affect 2 secondary targets. This can make things difficult for heroes like Phantom Lancer, Chaos Knight, and Terrorblade who rely on illusion armies.
* Mana Drain and Hex instantly kill any illusions. Finger of Death upgraded with Aghanim's Scepter also shreds most illusions.
* One of Lion's level 20 talents lets Mana Drain affect 2 secondary targets. This can make things difficult for heroes like Phantom Lancer, Chaos Knight, and Terrorblade who rely on illusion armies.
Additional:
* 
Mana Drain is a real problem to Chaos Knight early game, considering his already low mana pool.
* Aghanim's Scepter upgraded 
Finger of Death is an AoE ability, which can deal a tremendous amount of damage to his illusions.
Centaur Warrunner
[wiki] rating: 0.6 (winrate: 49% pickrate: 4%)Chaos Knight
* Heroes who are reliant on illusions: Chaos Knight, Phantom Lancer, Naga Siren.
Slardar
[wiki] rating: 0.6 (winrate: 48% pickrate: 9%)Dragon Knight
* 
Slardar can chase Dragon Knight down with 
Guardian Sprint and stun him with both 
Slithereen Crush and his passive 
Bash of the Deep. He can also use 
Corrosive Haze to whittle Dragon Knight's armor.
Hoodwink
[wiki] rating: 0.6 (winrate: 47% pickrate: 22%)Dragon Knight
* Durable heros relied a lot on their main passive effects and items' effects such as 
Bristleback, 
Underlord and Dragon Knight can be removed their effects easily with 
Sharpshooter's break.
Grimstroke
[wiki] rating: 0.6 (winrate: 47% pickrate: 8%)Chaos Knight
* Heroes who are reliant on illusions or summons: Chaos Knight, 
Broodmother, Naga Siren.
Meepo
[wiki] rating: 0.6 (winrate: 47% pickrate: 1%)Chaos Knight
* Illusion-based and multi-unit heroes can take advantage of Chaos Knight's lack of area damage: Naga Siren, Phantom Lancer, Meepo, Broodmother
Snapfire
[wiki] rating: 0.6 (winrate: 46% pickrate: 10%)Chaos Knight
* Heroes reliant on illusions or summons: Broodmother, Chaos Knight, Naga Siren.
Tiny
[wiki] rating: 0.6 (winrate: 45% pickrate: 7%)Chaos Knight
* Melee carries will have a hard time against Tiny's Craggy Exterior: Phantom Assassin, Chaos Knight, Juggernaut.
Ursa
[wiki] rating: 0.4 (winrate: 50% pickrate: 12%)Dragon Knight
* 
Fury swipes can tear Dragon knight down as it stacks infinitely.
Chaos Knight
* Ursa struggles against illusion heroes like Chaos Knight and Phantom Lancer.
Additional:
* Ursa cannot effectively fight against Phantasm's illusions with his single-target damage.
* Chaos Bolt's potentially long stun with Chaos Bolt gives Ursa little opportunity to 
Enrage.
Necrophos
[wiki] rating: 0.4 (winrate: 49% pickrate: 4%)Chaos Knight
* Heroes that have high health but little to no magic resistance are easy prey for Necrophos, as no matter how high they build their health up, Reaper's Scythe will kill them outright as long as they fall under a certain threshold, and Heartstopper Aura will deal the same amount of damage regardless, decaying their health the longer they stay within range. As such, Strength heroes like Chaos Knight, 
Centaur Warrunner or 
Magnus are good targets for his ultimate.
Dragon Knight
* 
Heartstopper Aura and 
Reaper's Scythe go right through Dragon Knight's armor.
Chaos Knight
* Illusions make it difficult for Necrophos to target his Reaper's Scythe correctly, thus giving illusion heroes like Chaos Knight or Naga Siren an edge against Necrophos.
Dragon Knight
* Enemies that possess high defenses through magic resistance, damage reduction, or high regeneration will make it difficult to whittle their health down to get to Reaper's Scythe's threshold. Such heroes include Bristleback (although only from behind), 
Spectre, Ursa, and Dragon Knight.
Tinker
[wiki] rating: 0.4 (winrate: 49% pickrate: 8%)Chaos Knight
* With Aghanim's Scepter, Tinker's Laser completely stops Chaos Knight's damage, forcing him to buy either a Black King Bar for his own survivability while leaving his illusions still vulnerable, or a Monkey King Bar leaving him still vulnerable to Tinker's nukes, though improving his damage.
* Tinker rarely finds himself in the middle of a fight, which is where Chaos Knight typically thrives, and even in the rare cases of being so, at level 3 Tinker's constant rearm and blink away can kite and dodge Chaos Knight's spells reliably, so Chaos Knight has very little catch against Tinker's mobility. This gives Tinker impunity to create more chaos in a teamfight than Chaos Knight can control, laying down the field with March of the Machines and constantly being hit by rockets and lasers.
Additional:
* Tinker's Aghanim's Scepter upgraded 
Laser can blind him and all of his Phantasm illusions.
Chaos Knight
* Illusion heroes, such as Naga Siren, Phantom Lancer, Chaos Knight, Terrorblade will become strong against Tinker in the late game when Tinker's only area of effect damage, March of the Machines, ceases to kill illusions quickly. Without Aghanim's Scepter Tinker is forced to defensively disarm heroes with Laser, leaving illusions free to deal physical damage which Tinker's low armor makes highly effective. In addition, 
Mjollnir or 
Battle Fury, two common pickups against illusion heroes, don't work well on Tinker at all.
Magnus
[wiki] rating: 0.4 (winrate: 46% pickrate: 7%)Chaos Knight
* Using Reality Rift sets up a 
Reverse Polarity on Chaos Knight and his illusions.
* 
Shockwave and 
Skewer kill Phantasm's illusions quickly, as can 
Empower cast on a melee carry.
Additional:
* All Magnus abilities are very good against Chaos Knight's Phantasm illusions.
Dragon Knight
* Any hero who can survive Magnus's initiations and manfight him: 
Huskar, 
Faceless Void, 
Weaver, 
Abaddon, Troll Warlord, Alchemist, Dragon Knight, 
Night Stalker, 
Viper.
Silencer
[wiki] rating: -2.0 (winrate: 49% pickrate: 8%)Dragon Knight
* If Silencer can't prevent Dragon Knight from using 
Elder Dragon Form, Silencer's spells aren't going to be that effective against him, as Dragon Knight relies on right-clicks and not spells.
* 
Dragon Blood's armor bonus and health regeneration allows Dragon Knight to stay in the lane against Glaives of Wisdom.
* Dragon Knight often builds Black King Bar, allowing him to remove Global Silence before engaging.
Chaos Knight
* Casting Phantasm before a fight minimizes the disruption from 
Global Silence.
* Because Chaos Knight generally relies on attack damage, Silencer's spells won't be as effective against him.
Lifestealer
[wiki] rating: -1.6 (winrate: 45% pickrate: 5%)Chaos Knight
* Chaos Knight's Level 20 Talent: Reality Rift Pierces Spell Immunity allows for quick bursting down of Lifestealer during his Rage.
* Phantasm dispels Open Wounds.
* Lifestealer has no way of dealing with Chaos Knight's illusions.
Dragon Knight
* Heroes that rely on physical damage are ineffective against Dragon Knight due to his high armor: Phantom Assassin,
Bloodseeker, 
Lifestealer, Troll Warlord
Templar Assassin
[wiki] rating: -1.6 (winrate: 49% pickrate: 5%)Chaos Knight
* 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.
* 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
Dragon Knight
* Despite the armor reduction from 
Meld, Templar Assassin's reliance on physical damage and medium attack speed is unlikely to harm Dragon Knight.
* Templar Assassin's Refraction charges also get quickly removed by the damage over time from Dragon Knight's ultimate.
Additional:
* The damage over time from Dragon Knight's Elder Dragon Form rapidly burns down Refraction, allowing him to attack her. Also, 
Breathe Fire reduces Templar Assassin's damage and 
Dragon Tail is a stun with a considerable duration, letting him and his team whittle her health down once her defenses wear off.
Troll Warlord
[wiki] rating: -1.6 (winrate: 50% pickrate: 9%)Chaos Knight
* Chaos Knight's tanky illusions easily take advantage of Troll Warlord's lack of AoE damage.
* Chaos Bolt can stun Troll for up to 4 seconds and Reality Rift prevents Troll Warlord from chasing down foes.
* Phantasm increases Chaos Knight's physical damage output up to 4 times and can easily kill Troll Warlord before he has a chance to use Battle Trance or a Black King Bar.
Dragon Knight
* Heroes that rely on physical damage are ineffective against Dragon Knight due to his high armor: Phantom Assassin,Bloodseeker, Lifestealer, Troll Warlord
Bloodseeker
[wiki] rating: -1.6 (winrate: 51% pickrate: 2%)Chaos Knight
* Heroes with illusion and clone abilities may confuse Bloodseeker, causing him to waste time in fights: Phantom Lancer, Chaos Knight, 
Arc Warden
Dragon Knight
* Bloodseeker's physical damage is unlikely to kill Dragon Knight, and therefore rarely get a chance to recover the large amount of HP from 
Bloodrage.
Shadow Shaman
[wiki] rating: -1.6 (winrate: 52% pickrate: 13%)Chaos Knight
* Single-target disablers will have difficulty locking down a Chaos Knight with Phantasm active: 
Bane, 
Beastmaster, Bloodseeker, 
Clockwerk, Doom, Shadow Shaman.
Dragon Knight
* Dragon Knight can simply tank and destroy all Shadow Shaman's Serpent Wards.
Juggernaut
[wiki] rating: -1.6 (winrate: 53% pickrate: 20%)Dragon Knight
* Heroes with high armor and/or durability can handle Juggernaut's ultimate, such as Sven and Dragon Knight.
Chaos Knight
* While Blade Fury is on cooldown, Juggernaut can easily killed by a standard Chaos Bolt & Reality Rift combo.
* Phantasm illusions can tank Omnislash.
Night Stalker
[wiki] rating: -1.6 (winrate: 53% pickrate: 5%)Chaos Knight
* Reality Rift pulls out Night Stalker while he tries to escape or chase.
* Night Stalker doesn't have a lot of ways to deal with multiple targets, which makes him vulnerable to Phantasm illusions from early to mid game, until Night Stalker buys Aghanim's Scepter.
Dragon Knight
* Heroes that are hard to gank: Dragon Knight, 
Mars, Centaur Warrunner.
Phantom Assassin
[wiki] rating: -1.2 (winrate: 46% pickrate: 17%)Dragon Knight
* Heroes that rely on physical damage are ineffective against Dragon Knight due to his high armor: Phantom Assassin,Bloodseeker, Lifestealer, Troll Warlord
Additional:
* High armor thanks to Dragon Blood makes it difficult for Phantom Assassin to burst down Dragon Knight, as she deals 100% physical damage.
* Dragon Tail stuns Phantom Assassin as soon as she initiates, preventing her from gaining bonus attack speed.
* Dragon Knight is one of the few heroes who can safely solo lane against Phantom Assassin alongside a support.
Chaos Knight
* Heroes with illusions and summons can be hard for Phantom Assassin to deal with, as she lacks any AoE abilities to deal with them: Broodmother, Phantom Lancer, Chaos Knight.
Chen
[wiki] rating: -1.2 (winrate: 50% pickrate: 1%)Chaos Knight
* Illusion and heroes with summons are difficult to kill with Chen's single-target offensive spells: Terrorblade, Phantom Lancer, Chaos Knight, Broodmother, Naga Siren, Lycan, 
Visage. However, Chen can convert enemy summons with Holy Persuasion, as long as they don't bunch up.
Dragon Knight
* Heroes with cleave abilities and area of effect damage can make quick work of Chen's converted creeps and at same time gain farm: Magnus, Jakiro, 
Shadow Fiend, 
Kunkka, 
Luna, Dragon Knight, 
Medusa, Alchemist.
Rubick
[wiki] rating: -1.0 (winrate: 47% pickrate: 17%)Chaos Knight
* While Chaos Knight can land far away from Rubick due to 
Telekinesis, it can be counteracted by Reality Rift.
* Phantasm dispels 
Fade Bolt's damage reduction debuff.
* Rubick is fragile and can easily be killed by Chaos Knight and Phantasm's illusions, before he retaliates.
Pudge
[wiki] rating: -1.0 (winrate: 47% pickrate: 22%)Chaos Knight
* Phantasm's illusions make it difficult to land 
Meat Hook and 
Dismember.
* Chaos Bolt is a comparatively low cooldown tool to interrupt Dismember.
* Chaos Strike's lifesteal offsets 
Rot's damage.
Techies
[wiki] rating: -1.0 (winrate: 48% pickrate: 6%)Chaos Knight
* Phantasm's illusions can be used to push towers and force Techies to detonate 
Remote Mines.
* Phantasm's illusions can be used to sweep 
Proximity Mines and 
Stasis Traps.
* Chaos Knight can easily kill a lone Techies before they 
Blast Off!.
Slark
[wiki] rating: -1.0 (winrate: 48% pickrate: 12%)Chaos Knight
* 
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.
Zeus
[wiki] rating: -1.0 (winrate: 49% pickrate: 11%)Chaos Knight
* Chaos Knight's high health pool makes him resistant to Zeus' burst damage. Phantasm can dispel 
Veil of Discord, a typical item purchased by Zeus.
* Zeus is easily overwhelmed by Chaos Knight's strong illusions, as Arc Lightning is not enough to kill them fast enough to have any impact.
* Zeus' low base armor makes him extremely vulnerable to Chaos Knight's high damage output and armor reduction.
Spirit Breaker
[wiki] rating: -1.0 (winrate: 51% pickrate: 8%)Dragon Knight
* Spirit Breaker's slow attack speed and moderate damage do very little to harm Dragon Knight, even if ganked with 
Charge of Darkness.
Arc Warden
[wiki] rating: -1.0 (winrate: 51% pickrate: 5%)Chaos Knight
* Chaos Knight can dispel Flux with Phantasm.
* Chaos Knight can use Reality Rift to pull Arc Warden out of Magnetic Field.
* Once Chaos Knight jumps on Arc Warden with Reality Rift, Arc Warden struggles to escape due to low mobility.
Lone Druid
[wiki] rating: -1.0 (winrate: 52% pickrate: 1%)Chaos Knight
* Reality Rift lets Chaos Knight bypass the Spirit Bear and jump onto Lone Druid.
* The Spirit Bear's lack of scaling means it dies quickly to Chaos Knight during the late-game.
Bounty Hunter
[wiki] rating: -1.0 (winrate: 52% pickrate: 8%)Chaos Knight
* Phantasm dispels 
Track, and the illusions make it difficult to Track the real Chaos Knight.
* Bounty Hunter is fragile and can easily be killed by Chaos Knight and Phantasm's illusions.
Clinkz
[wiki] rating: -1.0 (winrate: 53% pickrate: 6%)Dragon Knight
* The extra damage from 
Searing Arrows is largely blocked by Dragon Knight's armor.
Ogre Magi
[wiki] rating: -1.0 (winrate: 53% pickrate: 17%)Chaos Knight
* Phantasm dispels Ignite and makes targeting the real Chaos Knight much harder.
Wraith King
[wiki] rating: -1.0 (winrate: 53% pickrate: 21%)Chaos Knight
* Wraith King has no form of AoE to clear Chaos Knight's illusions from Phantasm.
* Wraith King is very vulnerable if he reincarnates in the middle of his illusions.
Riki
[wiki] rating: -1.0 (winrate: 54% pickrate: 10%)Dragon Knight
* Riki does little damage to Dragon Knight, as he relies only on physical damage with modest attack speed and lack of burst.
Nyx Assassin
[wiki] rating: -1.0 (winrate: 55% pickrate: 11%)Dragon Knight
* Dragon Knight's heavy armor negates 
Vendetta's burst physical damage. His large HP pool also gives him a good chance of surviving Nyx Assassin's follow-up nuke damage.
Doom
[wiki] rating: -0.6 (winrate: 44% pickrate: 3%)Chaos Knight
* Single-target disablers will have difficulty locking down a Chaos Knight with Phantasm active: Bane, Beastmaster, Bloodseeker, Clockwerk, Doom, Shadow Shaman.
Vengeful Spirit
[wiki] rating: -0.6 (winrate: 48% pickrate: 9%)Chaos Knight
* Heroes who relies on illusions and summons (Beastmaster, Chaos Knight, etc.).
Tusk
[wiki] rating: -0.6 (winrate: 49% pickrate: 7%)Dragon Knight
* Durable heroes can fight with stand against Tusk during 1v1: Axe, Dragon Knight, Night Stalker, Centaur Warrunner, Wraith King and more.
Disruptor
[wiki] rating: -0.6 (winrate: 49% pickrate: 8%)Chaos Knight
* Chaos Knight with Phantasm
* 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
Additional:
* Phantasm removes 
Glimpse and dispels 
Thunder Strike. Additionally, the Phantasm illusions make it difficult to use Glimpse and Thunder Strike on the real Chaos Knight.
* Disruptor's lack of mobility, combined with his lack of innate defense, sets him up for a Reality Rift and a beatdown by Chaos Knight and his illusions.
Luna
[wiki] rating: -0.6 (winrate: 49% pickrate: 4%)Chaos Knight
* Heroes that create illusions (such as Spectre, 
Shadow Demon, Phantom Lancer, Naga Siren, Chaos Knight, Terrorblade) or bring other units into the fight (such as 
Nature's Prophet, 
Lone Druid, 
Chen, 
Enchantress and the aforementioned Meepo and Arc Warden) can cause Eclipse to strike the illusions/summons unintentionally. (However, in many cases Moon Glaives can resolve this issue and eliminate them before activating Eclipse).
Clockwerk
[wiki] rating: -0.6 (winrate: 50% pickrate: 7%)Chaos Knight
* Single-target disablers will have difficulty locking down a Chaos Knight with Phantasm active: Bane, Beastmaster, Bloodseeker, Clockwerk, Doom, Shadow Shaman.
Skywrath Mage
[wiki] rating: -0.6 (winrate: 50% pickrate: 6%)Chaos Knight
* Skywrath mage also has a terrible time fighting against anything that isn't a hero. As Mystic Flare only affects heroes, his skills are mostly target-based and he has terrible strength and agility, he can easily be kited or harassed by illusion-based heroes like Chaos Knight and Phantom Lancer, or by Heroes that summon other units like Lone Druid, Lycan and Beastmaster.
Undying
[wiki] rating: -0.6 (winrate: 50% pickrate: 7%)Chaos Knight
* Chaos Knight's multiple illusions from Phantasm can destroy Undying, as Soul Rip can't offset the damage from the high amount of damage from his illusions.
Void Spirit
[wiki] rating: -0.6 (winrate: 51% pickrate: 10%)Dragon Knight
* Heroes who can match Void Spirit's mobility (like the aforementioned Ember Spirit or Queen of Pain) or tank his spells (Dragon Knight or Centaur Warrunner) are very problematic for him.
Bane
[wiki] rating: -0.6 (winrate: 51% pickrate: 5%)Chaos Knight
* Heroes with illusions and summons can swarm Bane, who has no area abilities: Broodmother, Chaos Knight, Nature's Prophet, Phantom Lancer, Terrorblade
Additional:
* Phantasm's illusions make it difficult for Bane to target Chaos Knight with 
Nightmare, 
Brain Sap and 
Fiend's Grip.
* Chaos Bolt is a comparatively low cooldown tool to interrupt Fiend's Grip.
* Nightmare can be transferred by Phantasm illusions.
Warlock
[wiki] rating: -0.6 (winrate: 51% pickrate: 5%)Chaos Knight
* Warlock is a very strong hero when positioned correctly, and his long cast range helps him with this. However, some Heroes might disrupt or sneakily pass through your allies and deal with you, preventing you from doing your job. Such heroes include Chaos Knight, 
Spirit Breaker, Riki, and some others.
Visage
[wiki] rating: -0.6 (winrate: 51% pickrate: 3%)Chaos Knight
* Heroes that can overwhelm Visage by sheer number like Chaos Knight, Meepo, Terrorblade and Phantom Lancer.
Beastmaster
[wiki] rating: -0.6 (winrate: 55% pickrate: 4%)Chaos Knight
* Single-target disablers will have difficulty locking down a Chaos Knight with Phantasm active: Bane, Beastmaster, Bloodseeker, Clockwerk, Doom, Shadow Shaman.
Lycan
[wiki] rating: -0.6 (winrate: 57% pickrate: 6%)Dragon Knight
* Dragon Knight's insanely high armor and splash damage can cause Lycan to struggle taking him down.
Shadow Fiend
[wiki] rating: -0.4 (winrate: 47% pickrate: 19%)Dragon Knight
* Shadow Fiend's 
Presence of the Dark Lord reduces Dragon Knight's armor considerably, and his strong base attacks are augmented by his 
Necromastery.
Dragon Knight
* Dragon Tail can be used to cancel Requiem of Souls.
* 
Breathe Fire reduces Shadow Fiend's damage even further.
* Dragon Knight's high strength and Dragon Blood means that he'll be able to tank Shadow Fiend's right clicks.
Legion Commander
[wiki] rating: -0.4 (winrate: 49% pickrate: 13%)Chaos Knight
* Heroes who rely on illusions will see them destroyed easily by Overwhelming Odds: Phantom Lancer, Chaos Knight, Terrorblade, Naga Siren
Dragon Knight
* Dragon Knight's high natural sustain and health regeneration from Dragon Blood makes him hard to take down in Duels.
Shadow Demon
[wiki] rating: 0.0 (winrate: 46% pickrate: 3%)Dragon Knight
* Heroes that lose a great amount of their tankiness and become easier to finish off: Bristleback, Spectre, Phantom Assassin, Enchantress, Dragon Knight.
* Once you have an Aghanim's Scepter, Shadow Demon instantly reach a new power spike and become a counter for a variety of heroes that have strong passives.
* Heroes that lose a great amount of their tankiness and become easier to finish off: Bristleback, Spectre, Phantom Assassin, Enchantress, Dragon Knight.
* Heroes that lose a great amount of damage output and become less threatening: Phantom Assassin, Sven, Slark, Phantom Lancer.
* You can always stack camps and farm the scepter with Shadow Poison.
Chaos Knight
* Chaos Knight, Lone Druid, Meepo and Arc Warden can be hard targets since Shadow Demon's spells are ill-suited to fight many enemies at once.
Witch Doctor
[wiki] rating: 0.0 (winrate: 47% pickrate: 12%)Chaos Knight
* 
Maledict cannot be dispelled by Phantasm, and can be used to tag the real Chaos Knight hiding within his illusions.
* If Witch Doctor has an Aghanim's Scepter, 
Death Ward will bounce between Chaos Knight's illusions, destroying them quickly.
* However, Death Ward is easily interrupted by Chaos Bolt until Witch Doctor buys 
Glimmer Cape or Black King Bar.
Dragon Knight
* Death Ward does little damage against Dragon Knight's armor, and Dragon Knight's high health regeneration minimizes damage from Maledict.
Viper
[wiki] rating: 0.0 (winrate: 48% pickrate: 7%)Dragon Knight
* In the early game, a Dragon Knight without Black King Bar is basically defenseless against Viper.
Additional:
* Dragon Knight is easily harassed by Poison Attack after the laning stage ends.
* Corrosive Skin protects Viper from Breathe Fire and returns damage.
* Nethertoxin mitigates Dragon Blood, Dragon's Knight main source of armor and health regeneration.
* Between Poison Attack and Viper Strike, Viper can keep Dragon Knight permanently slowed even in Elder Dragon Form.
Chaos Knight
* Viper has no response to the standard initiation combo of Reality Rift into Chaos Bolt.
* Phantasm can eliminate Viper almost instantly with its damage output.
Additional:
* As Viper focuses on single-target damage, he has trouble fighting off Phantasm illusions.
* Reality Rift counteracts Viper's slows and reduces his durability.
Phantom Lancer
[wiki] rating: 0.0 (winrate: 49% pickrate: 7%)Chaos Knight
* Chaos Knight's single target abilities are difficult to target against Phantom Lancer's illusions.
* Chaos Knight's lack of mobility makes him an easy target for Phantom Lancer to rush and drain of mana.
Additional:
* 
Juxtapose allows Phantom Lancer to overwhelm Chaos Knight due to his single-target abilities.
* Doppelganger can be used to dodge Chaos Bolt.
* 
Spirit Lance can be used to harass Chaos Knight during the early game.
* Since Phantom Lancer build 
Diffusal Blade often, it can quickly drain Chaos Knight of all his mana, leaving him unable to cast spells.
Dragon Knight
* Breathe Fire and Elder Dragon Form's splash damage takes out Phantom Lancer's illusions quickly.
* If Dragon Knight can Dragon Tail the real Phantom Lancer, he and his team can quickly kill him before he has a chance to escape.
Huskar
[wiki] rating: 0.0 (winrate: 49% pickrate: 2%)Dragon Knight
* Huskar can burn down Dragon Knight's health quickly during the early to mid game, but is not as effective during the late game. However, 
Life Break remains a constant threat due to the slow and percentage-based damage.
Additional:
* Huskar can negate Dragon Knight's passive with multiple trades of Burning Spear.
Chaos Knight
* Heroes with illusions can overwhelm Huskar, as he has no AoE abilities: Phantom Lancer, 
Anti-Mage, Arc Warden, Chaos Knight.
Drow Ranger
[wiki] rating: 0.0 (winrate: 50% pickrate: 8%)Dragon Knight
* Dragon Knight has no built in disengage from 
Frost Arrows, and 
Marksmanship procs ignore base armor, bypassing Dragon Knight’s tankiness for the most part, making Drow one of the few heroes that can deal enough sustained damage to solo kill Dragon Knight.
* With 
Aghanim's Shard, Frost Arrows also apply hypothermia stacks, reducing her target’s regen, which is especially potent against tanks like Dragon Knight. (A similar effect can also be achieved with an 
Eye of Skadi)
Additional:
* Dragon Knight has no built in disengage from Frost Arrows, and Marksmanship procs ignore base armor, bypassing Dragon Knight’s tankiness for the most part, making Drow one of the few heroes that can deal enough sustained damage to solo kill Dragon Knight.
* With Aghanim's Shard, Frost Arrows also apply hypothermia stacks, reducing her target’s regen, which is especially potent against tanks like Dragon Knight. (A similar effect can also be achieved with an Eye of Skadi)
Chaos Knight
* Reality Rift will disable Drow Ranger's Marksmanship, along with Chaos Bolt he can keep her locked for enough time to be killed.
* Phantasm's illusions are hard for Drow Ranger to deal with as she lacks of AoE damage.
Crystal Maiden
[wiki] rating: 0.0 (winrate: 50% pickrate: 13%)Chaos Knight
* Heroes the make heavy use of illusions, like Chaos Knight, Phantom Lancer, or Spectre can suffer from Crystal Maiden, as Freezing Field can quickly kill off the entire horde if not stopped.
Chaos Knight
* Innately fragile heroes will die almost instantly to Reality Rift while Chaos Knight has illusions active: 
Drow Ranger, Bane, 
Necrophos, 
Crystal Maiden.
Naga Siren
[wiki] rating: 0.0 (winrate: 51% pickrate: 2%)Chaos Knight
* Illusion-based and multi-unit heroes can take advantage of Chaos Knight's lack of area damage: Naga Siren, Phantom Lancer, Meepo, Broodmother
Dragon Knight
* Cleave heroes will clear her illusions. Such heroes include Sven, Magnus, Dragon Knight in Elder Dragon Form, Ember Spirit (via item), Phantom Assassin (via talent or item), etc.
Razor
[wiki] rating: 0.0 (winrate: 53% pickrate: 2%)Dragon Knight
* 
Static Link saps Dragon Knight of his already low base damage, making him even more useless in a fight if he gets kited.
* 
Storm Surge makes Razor much faster than Dragon Knight, and hard to catch.
Chaos Knight
* Razor has no way to deal with Chaos Knight's multiple illusions from Phantasm.
Broodmother
[wiki] rating: 0.0 (winrate: 56% pickrate: 2%)Chaos Knight
* Illusion-based and multi-unit heroes can take advantage of Chaos Knight's lack of area damage: Naga Siren, Phantom Lancer, Meepo, Broodmother
Dragon Knight
* Broodmother's spiderlings and spiderites do almost nothing against Dragon Knight.
Additional:
* Breathe Fire will clear Broodmother's spiderites while significantly damaging her spiderlings and decreasing their damage output.
* Dragon Blood's added armor and regen mitigates the damage done by Broodmother and her spiders.
* Elder Dragon Form at level 2 and above applies splash damage to Dragon Knight's auto attacks.
Chaos Knight
* Reactive Armor helps Timbersaw to endure the damage from
Chaos Bolt and 
Reality Rift combo.
Whirling Death and 
Chakram, lets Timbersaw clear out illusions quickly.
Whirling Death directly reduces Strength from both Chaos Knight and his Phantasm illusions, reducing both the damage output and raw health that the hero relies on. 
Reactive Armor quickly builds stacks against Phantasm illusions, making Timbersaw hard to kill.
Timber Chain allows Timbersaw to escape while surrounded.
* Timbersaw's large amount of pure damage AoE nukes clears Chaos Knight's illusions quickly, drastically reducing his damage.
Additional:
* Strong area damage, particularly from
*
*
*
Dragon Knight
* Timbersaw's pure damage will kill Dragon Knight surprisingly fast, especially if he gets caught in a bad position while laning.