Nyx Assassin
[wiki] rating: 2.0 (winrate: 54% pickrate: 13%)Silencer
[wiki] rating: 2.0 (winrate: 49% pickrate: 8%)Tinker
* As Tinker relies heavily on his spells to be effective, 
Last Word and 
Global Silence will render him largely useless.
* 
Arcane Curse effectively prevents Tinker from casting spells during its duration, as he will otherwise suffer heavy damage.
* 
Glaives of Wisdom deal pure damage, which make quick work of fragile heroes like Tinker.
Additional:
* Silencer can stop 
Rearm, preventing Tinker from spamming his abilities/items or escaping.
Lina
* Arcane Curse discourages Lina from using her abilities, preventing her from building up Fiery Soul stacks.
* Last Word and Global Silence are great against Lina for the same reason, as well as interrupting her combos and preventing her from casting spells.
Spectre
[wiki] rating: 2.0 (winrate: 46% pickrate: 6%)Lina
* 
Spectral Dagger and 
Haunt allow Spectre to get close to Lina.
* 
Desolate is very strong against Lina, who's usually a bit isolated in fights because of her high attack and cast range.
* 
Dispersion can mitigate a good portion of Lina's burst damage, allowing Spectre to turn on her afterwards.
Additional:
* Spectre can very easily close the distance on Lina with Haunt and Spectral Dagger, and due to Lina's abysmal mobility without a 
Blink Dagger and terrible health pool and armor, Lina easily gets slaughtered due to Desolate.
* Dispersion can mitigate a good portion of Lina's burst damage, allowing Spectre to turn against her afterwards.
Tinker
* His global teleportation with 
Boots of Travel and Rearm is easily countered with Haunt, and Spectre can reach him anywhere on the map.
* He is squishy, and if alone Desolate will kill him very fast.
* 
Laser's blind isn't reliable, since Desolate cannot miss.
Lifestealer
[wiki] rating: 2.0 (winrate: 46% pickrate: 5%)Tinker
* 
Rage will dispel Laser's blind and turns him spell immune for the duration so Tinker cannot damage him.
* 
Feast will quickly bring down Tinker due to being so fragile.
Additional:
* Lifestealer's Rage makes him immune to all of Tinker's damage and debuffs.
* Lifestealer can infest any mobile hero (teams usually pick one against Tinker), which ensures that Tinker will die if he is caught.
Lina
* Rage protects Lifestealer from all of Lina's abilities (except an upgraded Laguna Blade).
* 
Open Wounds is great to keep Lina in place because she has no abilities to help her escape.
Night Stalker
[wiki] rating: 1.6 (winrate: 53% pickrate: 5%)Tinker
* Night Stalker can easily find Tinker in the trees during 
Dark Ascension.
* 
Void's mini-stun will stop Rearm and Boots of Travel.
* 
Crippling Fear's silence will prevent Tinker from fighting back, as Tinker relies on his spells.
Additional:
* Night Stalker is one of the best heroes to find (and silence) Tinker in the trees during Dark Ascension.
Lina
* Heroes with low mobility that rely on spells: 
Zeus, 
Lina, 
Crystal Maiden.
Pugna
[wiki] rating: 1.6 (winrate: 51% pickrate: 4%)Lina
* Nether Ward will be problematic for heavy nukers and spammers like 
Skywrath Mage, Lina, 
Lion and 
Invoker, but don't use Decrepify defensively against them as you'll be helping them out more than anything.
Tinker
* 
Nether Ward discourages Tinker from using abilities and items due to its high damage against heavy mana usage.
Earth Spirit
[wiki] rating: 1.6 (winrate: 50% pickrate: 9%)Lina
* Squishy heroes (
Io, Crystal Maiden, Lina...), as Earth Spirit can deal tons of damage with Magnetize.
Tinker
* Tinker is an easy target for Earth Spirit to initiate on. He likes to split push lanes once he acquieres Boots of Travel and Earth Spirit can jump him with his Rolling Boulder and disable him to buy enough time for his teammates to come and assist Earth Spirit.
* The huge range of Stone Remnant and Rolling Boulder enables Earth Spirit to stop Tinker from teleporting to his fountain since Tinker tends to buy Blink Dagger most of the time to escape.
Phantom Lancer
[wiki] rating: 1.6 (winrate: 49% pickrate: 7%)Tinker
* 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.
Lina
* 
Doppelganger can be used to easily dodge Light Strike Array if timed correctly.
* Phantom Lancer can quickly deplete Lina's mana pool with his illusions and deal massive damage from it simultaneously since Phantom Lancer is a natural 
Diffusal Blade carrier.
Anti-Mage
[wiki] rating: 1.6 (winrate: 48% pickrate: 14%)Lina
* 
Blink allows Anti-Mage to get on top of Lina and deal damage with his 
Mana Break.
* 
Counterspell makes Anti-Mage tanky against Lina's heavy magic damage.
* A well-timed Counterspell can block and reflect Laguna Blade.
* 
Mana Void is very strong against Lina, who has a high mana pool and quickly depletes it during fights.
Tinker
* Anti-Mage's high mobility from Blink and tendency to build Battle Fury makes him strong against split-pushing heroes: 
Nature's Prophet, 
Tinker, and 
Arc Warden.
Additional:
* Tinker is fragile and vulnerable against carries like Anti-Mage.
* Mana Break burns away his mana pool and deals bonus physical damage.
* Tinker's massive mana pool makes Mana Void deal large amount of damage, and can be used to cancel a Boots of Travel teleport even through spell immunity.
* Blink gives Anti-Mage many options, like disjointing Heat Seeking Missiles or leaving March of Machines' area of effect. He can use Blink to wait out of sight for a split pushing Tinker or chase a blinking Tinker into trees.
* Tinker doesn't want any of his spells reflected back at him through Counterspell.
Slark
[wiki] rating: 1.4 (winrate: 48% pickrate: 13%)Tinker
* 
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.
Lina
* 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.
Lina
* Heroes with heavy magical nukes will take advantage of Slarks poor HP or force him to use Shadow Dance early: Lina, Lion, Zeus
Puck
[wiki] rating: 1.2 (winrate: 52% pickrate: 15%)Tinker
* Low health spellcasters: Lina, 
Witch Doctor, Tinker, 
Keeper of the Light, all rely heavily on their spells and are fragile heroes. They all also have avoidable spells, allowing Puck to get to them and quickly burst them down.
Lina
* Low health spellcasters: Lina, Witch Doctor, Tinker, Keeper of the Light, all rely heavily on their spells and are fragile heroes. They all also have avoidable spells, allowing Puck to get to them and quickly burst them down.
Batrider
[wiki] rating: 1.2 (winrate: 48% pickrate: 5%)Lina
* Heroes with abilities that can pull Lina out of position can easily bring her to their team mates, like 
Batrider with 
Flaming Lasso and 
Pudge with his 
Meat Hook.
Tinker
* Heroes that can gain vision over trees to catch Tinker: Invoker, 
Shadow Demon, Batrider
Beastmaster
[wiki] rating: 1.0 (winrate: 55% pickrate: 4%)Tinker
* Beastmaster's Hawk can find Tinker easily while he is pushing or blinking into trees.
Clockwerk
[wiki] rating: 1.0 (winrate: 51% pickrate: 7%)Tinker
* Rocket Flare can find Tinker if he blinks into the treeline, and Hookshot will prevent him from teleporting out.
* Battery Assault makes Tinker unable to Rearm by stunning him repeatedly.
Additional:
* Clockwerk can easily catch a split pushing Tinker with his 
Hookshot and prevent him from escaping with 
Power Cogs and 
Battery Assault.
* He can find a Tinker hiding in trees with his 
Rocket Flare.
* Clockwerk usually buys a 
Blade Mail, which does lots of damage to Tinker if he gets hit by his abilities (especially March of the Machines).
Storm Spirit
[wiki] rating: 1.0 (winrate: 50% pickrate: 10%)Tinker
* Storm Spirit destroys trees and ignores impassable terrains with Ball Lightning, rendering them dangerous places for Tinker to hide within.
* Ball Lightning disjoints projectile from 
Heat-Seeking Missile and damage from 
March of the Machines.
* Electric Vortex prevents Tinker from teleporting away, and Static Remnant and Overload can easily burst him down.
Additional:
* He can easily catch Tinker in the trees with 
Ball Lightning and kill him with 
Orchid Malevolence and his abilities, which deal both physical and magical damage, making them difficult for Tinker to itemize against.
Spirit Breaker
[wiki] rating: 1.0 (winrate: 50% pickrate: 8%)Tinker
* Tinker relies on his high mobility from Boots of Travel and Blink Dagger to survive. Those items don't help him if Spirit Breaker manages to cast Charge of Darkness on him.
* Spirit Breaker can easily cancel Rearm and Boots of Travel.
Ursa
[wiki] rating: 1.0 (winrate: 49% pickrate: 13%)Lina
* 
Light Strike Array has a long delay, making her vulnerable for Ursa's burst.
* Enrage can protect Ursa against Lina's high magical burst.
Zeus
[wiki] rating: 1.0 (winrate: 49% pickrate: 11%)Tinker
* Due to Tinker's low health pool, Zeus can easily burst Tinker down, while also cancelling Rearm.
* Once Zeus gets Aghanim's Scepter, he will gain 
Nimbus, which allows him to scout out Tinker on the map, especially when he is pushing lanes while hiding in the trees.
Additional:
* Zeus can easily reveal Tinker's location in the trees with 
Thundergod's wrath.
* When Zeus has an Aghanim's Scepter, he can use his Nimbus, together with 
Lightning Bolt to interrupt Tinker's Boots of Travel channelling and cancel Tinker's Blink Dagger.
Legion Commander
[wiki] rating: 1.0 (winrate: 48% pickrate: 13%)Tinker
* 
Press the Attack can dispel Laser's blind while providing great attack speed and health regeneration.
* Once caught in a 
Duel, Tinker, who completely relies on his spells to be effective, has little chances of survival with his low health pool and armor.
Viper
[wiki] rating: 1.0 (winrate: 48% pickrate: 6%)Lina
* 
Nethertoxin prevents buildup of Fiery Soul stacks.
* 
Corrosive Skin provides magic resistance against Lina's spells.
* 
Poison Attack and 
Viper Strike can burn away Lina's small health pool.
Rubick
[wiki] rating: 1.0 (winrate: 47% pickrate: 17%)Lina
* Rubick will find all Lina's abilities useful:
* 
Dragon Slave provides a good way to clear creep waves and allows Rubick to deal tons of magical damage in teamfights.
* Light Strike Array gives Rubick a solid area stun, which is easy to set up right after Telekinesis.
* 
Laguna Blade gives Rubick a massive damage boost and great solo kill potential.
Doom
[wiki] rating: 1.0 (winrate: 44% pickrate: 3%)Tinker
* Tinker is heavily reliant on casting his spells and 
Doom can disable all of his abilities and items. An Aghanim's Scepter only makes it harder for Tinker to survive.
Additional:
* Tinker is heavily dependent on active abilities and Doom prevents him from using any of them.
Sven
[wiki] rating: 1.0 (winrate: 42% pickrate: 1%)Lina
* Sven has a high health pool and is a natural 
Black King Bar holder and is very hard to kill for Lina.
* Sven also has high physical damage, making it easy for him to burst her down.
Naga Siren
[wiki] rating: 0.6 (winrate: 50% pickrate: 2%)Tinker
* 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.
Templar Assassin
[wiki] rating: 0.6 (winrate: 50% pickrate: 5%)Lina
* Heroes with powerful nuke can waste their precious abilites on her Refraction during a ganking attempt or chaos combat: 
Lich, Lina, 
Sniper, 
Outworld Destroyer Zeus
Invoker
[wiki] rating: 0.6 (winrate: 50% pickrate: 17%)Lina
* Heroes with long animations can be frequently interrupted with Cold Snap: 
Earthshaker, 
Monkey King, 
Shadow Fiend Lina
Tinker
* Heroes that can gain vision over trees to catch Tinker: Invoker, Shadow Demon, Batrider
Additional:
* Tinker is relatively helpless against Invoker, as his Rearm and Boots of Travel can be easily interrupted by Invoker's long range disables, even if he blinks away.
Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, 
Enchantress, 
Gyrocopter, Lion, 
Riki, 
Techies, Terrorblade, 
Necrophos, Invoker.
Pudge
[wiki] rating: 0.6 (winrate: 47% pickrate: 21%)Lina
* Heroes with abilities that can pull Lina out of position can easily bring her to their team mates, like Batrider with Flaming Lasso and Pudge with his Meat Hook.
Tinker
* He can Meat Hook a Tinker hiding in the trees and follow it up with 
Dismember and 
Rot for an easy solo kill, as Tinker doesn't tend to buy survivability items.
* His innate magic resistance and huge health pool from 
Flesh Heap makes it hard for Tinker to deal serious damage to Pudge.
Additional:
* Meat Hook can used to pull Tinker while he is hiding in the trees, and a follow up with Dismember and Rot leads to an easy solo kill, as Tinker doesn't buy many survivability items.
* Flesh Heap makes it hard for Tinker to deal serious damage.
Lina
* Pudge has low armor and mobility, making him suspectible to her physical attacks (if Lina is the carry).
* Because Dismember is a channeled ability, it can be canceled through Light Strike Array within a distance.
Kunkka
[wiki] rating: 0.6 (winrate: 45% pickrate: 4%)Tinker
* Similarly, heroes with low cooldown teleports can be afraid to split push against X Marks the Spot, such as Tinker and Nature's Prophet.
* In general, highly mobile heroes like 
Earth Spirit or 
Storm Spirit are at a disadvantage against X Marks the Spot.
* Similarly, heroes with low cooldown teleports can be afraid to split push against X Marks the Spot, such as Tinker and Nature's Prophet.
Additional:
* 
X Marks the Spot can be used to prevent Tinker from escape with Blink Dagger or Boots of Travel, discourage him from snapping farm and snapping gank. However, in later game, it'll be much more difficult because Tinker can buy Black King Bar or 
Linken's Sphere to prevent Kunkka from placing X on him, or 
Eul's Scepter of Divinity to prevent the recall
Razor
[wiki] rating: 0.4 (winrate: 54% pickrate: 2%)Lina
* Razor naturally builds tank items which allow him to survive Lina's burst better than other heroes.
* 
Static Link makes Lina's high attack speed do very little damage.
Tinker
* Heroes who rely on abilities to deal damage (e.g. 
Timbersaw, Tinker) can fight a Razor even after Static Link.
Techies
[wiki] rating: 0.4 (winrate: 48% pickrate: 7%)Tinker
* A common playstyle among Tinkers is to teleport to a lane creep using Boots of Travel and immediately blink into the trees to cast March of the Machines. If Techies can predict where said Tinker would blink after teleporting, he could place strategic Proximity Mines or even Remote Mines in those places. Stasis Traps also prevent Tinker from blinking or teleporting away.
Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Magnus
[wiki] rating: -1.6 (winrate: 45% pickrate: 6%)Lina
* 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.
Tinker
* Tinker can break Magnus's Blink Dagger using March of the Machines and Heat-Seeking Missile, therefore delaying any initiation or making Magnus use Skewer or 
Force Staff to initiate. Tinker usually gets his own Blink Dagger as well, which makes him harder to lock down unless Magnus commits Reverse Polarity only for Tinker.
Nature's Prophet
[wiki] rating: -1.6 (winrate: 46% pickrate: 5%)Lina
* Heroes with summons can find their summons eliminated easily by Lina, like 
Broodmother, Nature's Prophet, and 
Chen.
Additional:
* Lina can easily prevent Nature's Prophet Teleportation escape attempts with Light Strike Array.
* Lina's Dragon Slave and Light Strike Array can kill Nature's Prophet's treants and grant her lot of farm.
* Nature's Prophet doesn't like buying Black King Bar, which is only item that can help him against Lina.
Tinker
* Tinker with Rearm and Boots of Travel can teleport and defend towers whenever Nature's Prophet tries to push.
* Laser prevents Nature's Prophet from attacking. Additionally, even with 
Monkey King Bar, Nature's Prophet cannot hit towers and buildings.
* March of the Machines can easily kill an entire wave of Treants, giving Tinker lots of gold.
Enchantress
[wiki] rating: -1.6 (winrate: 46% pickrate: 1%)Lina
* Enchantress has pitiful health, and cannot tank Lina's heavy magic damage.
* 
Untouchable is decently countered by Fiery Soul, exposing Enchantress' weakness to physical damage due to her low armor.
* Lina is decent at clearing creeps and can kill Enchantress' creeps quickly.
Additional:
* Enchantress has a very small health pool and cannot tank Lina's heavy magic burst.
* Untouchable is decently countered by 
Fiery Soul, exposing Enchantress' weakness to physical damage due to her low armor.
* Lina is decent at clearing creeps and can kill Enchantress' creeps quickly.
Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Shadow Fiend
[wiki] rating: -1.6 (winrate: 46% pickrate: 18%)Tinker
* During the laning stage Laser will reduce Shadow Fiend's last hits, preventing him from getting 
Necromastery souls.
* Shadow Fiend has low health and is vulnerable to Tinker's high magic burst.
Additional:
* The blind from Laser prevents Shadow Fiend from attacking for its duration, potentially preventing him from getting a kill.
* 
Scythe of Vyse can be used to prevent Shadow Fiend from casting Requiem of Souls.
* A combination of Tinker's abilities and his items (like the 
Dagon 5 and 
Ethereal Blade combo) can kill Shadow Fiend quickly.
Lina
* Heroes with high burst damage: Lina, Lion, Luna, 
Nyx Assassin, 
Queen of Pain.
Mars
[wiki] rating: -1.6 (winrate: 47% pickrate: 16%)Lina
* Dragon Slave deals reliable magic damage during the laning phase against Mars.
* Lina's Eul's Scepter of Divinity and Light Strike Array combo can interrupt Mars from being disruptive for a decent amount of time and leave him vulnerable for follow up stuns.
* Laguna Blade deals massive magical damage, and pure damage with Aghanim's Scepter.
Tinker
* Heroes with high magical or pure damage will bypass Bulwark: Timbersaw, 
Dark Willow, Enigma, Invoker, Pugna, Skywrath Mage, Tinker, Zeus, Oracle.
Gyrocopter
[wiki] rating: -1.6 (winrate: 48% pickrate: 3%)Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Lina
* Laguna Blade ends Gyrocopter very quickly in the early to mid game.
Necrophos
[wiki] rating: -1.6 (winrate: 49% pickrate: 4%)Lina
* Laguna Blade deals amplified magical damage (pure from Aghanim's Scepter) to Necrophos when he is under the effects of 
Ghost Shroud.
Additional:
* Laguna Blade's damage will be greatly amplified during Ghost Shroud.
Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Crystal Maiden
[wiki] rating: -1.6 (winrate: 50% pickrate: 14%)Lina
* Being a hero with low health and abysmal mobility, Lina can nuke her down easily.
* Since Crystal Maiden's 
Freezing Field is a channeled ability, Lina can use her Light Strike Array to cancel it easily.
Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Winter Wyvern
[wiki] rating: -1.6 (winrate: 51% pickrate: 5%)Lina
* Heavy nukers will do well against Cold Embrace (Lina, Zeus etc).
Tinker
* All of his damage is magical and pure, which makes Cold Embrace a good setup for his nukes.
* Winter's Curse is very hard to cast on Tinker because he usually stays in the back-lines in team-fights. In turn, Tinker has mediocre attack damage and will contribute very little when he is cursed to attack an ally. He can also save his ally under Winter's Curse effect with Ethereal Blade.
Clinkz
[wiki] rating: -1.6 (winrate: 52% pickrate: 5%)Tinker
* Heroes with high armor like 
Dragon Knight, or with abilities to cause attacks to miss like 
Phantom Assassin, Riki and Tinker will be hard to deal with, as Clinkz relies almost entirely on physical attacks.
Lina
* Lina's damage burst can quickly kill Clinkz before he saves them with 
Skeleton Walk.
* Fiery Soul attack speed bonus removes 
Burning Army easily in all stages of the game.
Monkey King
[wiki] rating: -1.6 (winrate: 53% pickrate: 18%)Lina
* Light Strike Array destroys the tree Monkey King is standing on.
* Lina's Laguna Blade high damage burst can kill Monkey King before he has Jingu Mastery bonuses.
Tinker
* Heroes with wide AoE abilities will reveal Monkey King through Mischief: Necrophos, Phoenix, Alchemist, Earthshaker, Razor, Tinker, 
Leshrac, Queen of Pain
Grimstroke
[wiki] rating: -1.2 (winrate: 47% pickrate: 10%)Tinker
* Heroes with powerful spammable abilities will prove problematic for Grimstroke as Ink Swell does not protect him from them: Zeus, Skywrath Mage, Tinker, Lina
Lina
* Heroes with powerful spammable abilities will prove problematic for Grimstroke as Ink Swell does not protect him from them: Zeus, Skywrath Mage, Tinker, Lina
Huskar
[wiki] rating: -1.2 (winrate: 50% pickrate: 2%)Lina
* Heroes with high magical burst can easily kill Huskar when he is at low health: Lion, Lina, Skywrath Mage
Tinker
* Heroes who rely on physical damage will suffer from Laser: Phantom Assassin, Wraith King, Huskar.
Windranger
[wiki] rating: -1.2 (winrate: 50% pickrate: 16%)Tinker
* Since Windranger is bad against magical damage, heroes with continuous magical damage or magical nukes can blast her: Zeus, Tinker, Leshrac, 
Viper, Skywrath Mage, Lion, Lina, Venomancer.
Lina
* Since Windranger is bad against magical damage, heroes with continuous magical damage or magical nukes can blast her: Zeus, Tinker, Leshrac, Viper, Skywrath Mage, Lion, Lina, Venomancer.
Terrorblade
[wiki] rating: -1.0 (winrate: 46% pickrate: 5%)Tinker
* 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.
Tinker
* Tinker can single-handedly stop Terrorblade's early-push and quickly clear his illusions with Laser (especially with Aghanim's Scepter) and March of Machines.
* Tinker has perfect tools to reveal Terrorblade from his illusions as well as to burst him down if he is low-health before he will be able 
Sunder.
Additional:
* An Aghanim's Scepter upgraded Laser allows Tinker to blind Terrorblade and illusions.
* Tinker can also clear Terrorblade's illusions and stall his pushing attempts with March of the Machines .
Lina
* Heroes with low health or rely on evasion can easily be bursted down, like Phantom Assassin or Terrorblade.
Additional:
* Laguna Blade is one of the best tools to kill Terrorblade before he can use Sunder due to its high magical (pure with Aghanim's Scepter) burst damage.
* Dragon Slave allows Lina to clear Terrorblade's illusions from Conjure Image and 
Manta Style.
Luna
[wiki] rating: -1.0 (winrate: 49% pickrate: 4%)Tinker
* Luna can easily prevent Tinker from escaping with Boots of Travel or Rearm with 
Lucent Beam.
* Luna can also quickly tear Tinker to shreds with 
Eclipse as soon as he jumps in with Blink Dagger.
Tinker
* Tinker's March of the Machines and Laser both destroy Luna's small health pool and make it hard for Luna to initiate with Eclipse (and making it hard to land glaives in Laser's case).
* Since Tinker typically buys Blink Dagger, Luna has a hard time catching him despite her high movement speed.
* Tinker can easily disable and nuke Luna down with 
Dagon or Scythe of Vyse before she can use Lucent Beam or Eclipse.
Lina
* Lina has very high magic burst damage to use against the low-health-pool Luna. Laguna Blade can also be upgraded with Aghanim's Scepter to bypass Luna's Black King Bar, making Lina even more of a threat.
Drow Ranger
[wiki] rating: -1.0 (winrate: 50% pickrate: 8%)Tinker
* Laser applies a blind debuff, making Drow Ranger miss her high damage attacks.
* Heat-Seeking Missile lets Tinker out-range Drow Ranger and hit her in the backline of a teamfight.
Mirana
[wiki] rating: -1.0 (winrate: 50% pickrate: 16%)Lina
* Eul's Scepter of Divinity and Light Strike Array combo will disable Mirana if she tries to Leap away.
* Laguna Blade's magical (pure with Aghanim's Scepter) burst damage takes advantage of Mirana's below average health.
Additional:
* 
Moonlight Shadow does little good against Dragon Slave and Light Strike Array.
* Lina's damage burst can quickly kill Mirana's teammates before she saves them with Moonlight Shadow.
Bloodseeker
[wiki] rating: -1.0 (winrate: 50% pickrate: 2%)Tinker
* Laser can be very effective against 
Bloodrage as the damage will be amplified while the blind prevents Bloodseeker from landing hits.
* Tinker is a natural Boots of Travel carrier and Rearm guarantees him escape from Rupture.
Additional:
* Laser blinds Bloodseeker, preventing him from getting last hits and denies during the laning stage and preventing him from finishing off enemies.
* Tinker always buys Boots of Travel, helping him escape Bloodseeker's early ganks.
* Tinker's heavy magical damage will burst down Bloodseeker during the early to mid game, as he has little health.
Venomancer
[wiki] rating: -1.0 (winrate: 51% pickrate: 5%)Lina
* Venomancer has low health, which makes him vulnerable to Lina's heavy magic damage.
* Fiery Soul attack speed bonus removes 
Plague Wards easily in all stages of the game.
Lone Druid
[wiki] rating: -1.0 (winrate: 51% pickrate: 2%)Tinker
* Laser blinds Lone Druid, making his attacks miss. Furthermore, a Tinker with Aghanim's Scepter is sure to blind both Lone Druid and his bear, negating his ability to root or deal physical damage.
Treant Protector
[wiki] rating: -1.0 (winrate: 52% pickrate: 6%)Lina
* Light Strike Array and Dragon Slave allows Lina to destroy trees, countering 
Nature's Guise and 
Eyes in the Forest.
* Lina has many tools to remove 
Living Armor's protection.
Ancient Apparition
[wiki] rating: -1.0 (winrate: 52% pickrate: 9%)Lina
* Lina builds Shadow Blade (and upgrades it into a 
Silver Edge), which makes it hard for Ancient Apparition to land his abilities.
* Laguna Blade can kill Ancient Apparition easily due to his low health pool and lack of mobility.
Bristleback
[wiki] rating: -0.6 (winrate: 45% pickrate: 8%)Lina
* Heroes who deal single instance burst damage will only proc Bristleback once: Lina, Lion.
Phantom Assassin
[wiki] rating: -0.6 (winrate: 46% pickrate: 16%)Lina
* Fragile support heroes are all ideal targets for the Phantom Assassin. Heroes such as Lina and Witch Doctor are all prime targets that may not be able to react quickly and fight back due to Phantom Assassin's sudden appearance.
Tinker
* Heroes who rely on physical damage will suffer from Laser: Phantom Assassin, Wraith King, Huskar.
Additional:
* The blind from Laser can render Phantom Assassin useless if she is not protected by Black King Bar.
* Tinker is a natural Scythe of Vyse carrier and can permanently disable Phantom Assassin, not giving her chance to activate Black King Bar if she has it.
Lina
* Heroes with low health or rely on evasion can easily be bursted down, like Phantom Assassin or Terrorblade.
Additional:
* Light Strike Array catches Phantom Assassin when she jumps in.
* Laguna Blade kills Phantom Assassin's abysmal health before she can do anything in early to mid game and also pierces her spell immunity with an Aghanim's Scepter.
Witch Doctor
[wiki] rating: -0.6 (winrate: 47% pickrate: 13%)Lina
* Heroes who have channeled abilities can be stunned by Light Strike Array, like Witch Doctor with 
Death Ward and 
Bane's 
Fiend's Grip.
Additional:
* Light Strike Array cancels out Death Ward from a long distance.
Morphling
[wiki] rating: -0.6 (winrate: 47% pickrate: 12%)Lina
* Heroes with high damage output who can burst down Morphling before he has time to use Attribute Shift (Strength Gain), like Lina and Lion.
Additional:
* Light Strike Array catches Morphling while he jumps in from 
Waveform and also prevents Morphling from using his abilities.
* Laguna Blade can kill Morphling quickly before he shifts into 
Attribute Shift (Strength Gain).
Chen
[wiki] rating: -0.6 (winrate: 48% pickrate: 0%)Lina
* Heroes with summons can find their summons eliminated easily by Lina, like Broodmother, Nature's Prophet, and Chen.
Additional:
* Lina's high damage burst from Dragon Slave, Light Strike Array and Laguna Blade can easily kill Chen's allies or Chen himself before he can use Hand of God.
Earthshaker
[wiki] rating: -0.6 (winrate: 48% pickrate: 10%)Tinker
* Tinker's March of the Machines will disable Blink Dagger over a large area.
Lion
[wiki] rating: -0.6 (winrate: 49% pickrate: 16%)Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Death Prophet
[wiki] rating: -0.6 (winrate: 50% pickrate: 2%)Lina
* Heroes that can kill Death Prophet with nukes can prevent her from using Exorcism to its full duration or using it at all: Lina, Lion, 
Puck, 
Morphling.
Jakiro
[wiki] rating: -0.6 (winrate: 50% pickrate: 11%)Tinker
* Heroes with good counter-push abilities to clear creep waves can hinder Jakiro's early pushing ability: 
Death Prophet, Sniper, Tinker, 
Windranger.
Outworld Destroyer
[wiki] rating: -0.6 (winrate: 50% pickrate: 6%)Tinker
* Tinker's Laser is useful against Outworld Devourer, as the blind prevents him from landing Arcane Orbs.
Phoenix
[wiki] rating: -0.6 (winrate: 51% pickrate: 10%)Lina
* Any hero with high attack speed will be a threat to Phoenix when it initiates, as they can easily tear down a Supernova, perhaps even while debuffed by Fire Spirits: 
Juggernaut, 
Clinkz, 
Troll Warlord, 
Beastmaster, Lina.
Bane
[wiki] rating: -0.6 (winrate: 52% pickrate: 5%)Lina
* Heroes who have channeled abilities can be stunned by Light Strike Array, like Witch Doctor with Death Ward and Bane's Fiend's Grip.
Wraith King
[wiki] rating: -0.6 (winrate: 53% pickrate: 20%)Tinker
* Heroes who rely on physical damage will suffer from Laser: Phantom Assassin, Wraith King, Huskar.
Enigma
[wiki] rating: -0.6 (winrate: 53% pickrate: 4%)Lina
* 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.
Riki
[wiki] rating: -0.6 (winrate: 53% pickrate: 12%)Tinker
* Any hero with a low HP pool is easy for Tinker to nuke down: Crystal Maiden, Enchantress, Gyrocopter, Lion, Riki, Techies, Terrorblade, Necrophos, Invoker.
Broodmother
[wiki] rating: -0.6 (winrate: 55% pickrate: 2%)Lina
* Heroes with summons can find their summons eliminated easily by Lina, like Broodmother, Nature's Prophet, and Chen.
Additional:
* Light Strike Array in combination with Dragon Slave can easily clear Broodmother's spiders.
* Laguna Blade offers extensive damage that can kill Broodmother early on or before she is able to use Insatiable Hunger in attempts to salvage a fight.
Shadow Demon
[wiki] rating: -0.4 (winrate: 47% pickrate: 3%)Tinker
* Heroes that can gain vision over trees to catch Tinker: Invoker, Shadow Demon, Batrider
Lina
* Dragon Slave will make quick work of the spawned illusions from Disruption.
* An attempt to save an ally using Disruption can easily become a perfect setup for a Light Strike Array for the enemy.
* Lina usually builds Eul's Scepter of Divinity to dispel Shadow Poison and Soul Catcher and Linken's Sphere to block Disruption and Demonic Purge.
* Shadow Demon doesn't have the burst damage to take Lina out of the fight quickly, although Demonic Purge can help his allies kill a squishy Lina.
Meepo
[wiki] rating: -0.4 (winrate: 47% pickrate: 1%)Tinker
* Tinker who can't fight multiple heroes will suffer greatly against Ransack and Earthbind.
Lina
* 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.
Timbersaw
[wiki] rating: -0.4 (winrate: 50% pickrate: 7%)Lina
* Heroes that can close the gap can easily chase her down, such as Timbersaw with 
Timber Chain and 
Anti-Mage with Blink.
Tinker
* Timbersaw's ability to destroy trees can be a serious problem for some heroes that use them, as either a way of enhancing their spells like Treant Protector, or heroes that tend to hide inside of them like Tinker and Monkey King.
Lina
* Timbersaw has a difficult time against magical and pure damage: Lina, Leshrac, Enchantress, Queen of Pain
Tinker
* All Tinker's damage is magic/pure and completely ignores Timbersaw's 
Reactive Armor.
* Timbersaw very rarely builds Black King Bar, making him very vulnerable if Tinker builds Scythe of Vyse.
Chaos Knight
[wiki] rating: -0.4 (winrate: 51% pickrate: 4%)Tinker
* 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.
Tinker
* 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.
Abaddon
[wiki] rating: -0.4 (winrate: 52% pickrate: 3%)Lina
* Both Lion's 
Finger of Death and Lina's Laguna Blade have a 0.25 second delay before the damage is dealt.
Lina
* Lina is a common Eul's Scepter of Divinity carrier which can waste some duration of Borrowed Time and following up with Laguna Blade if timed correctly.
Faceless Void
[wiki] rating: 0.0 (winrate: 43% pickrate: 7%)Lina
* 
Time Walk will easily backtrack Lina's burst damage (especially Laguna Blade) if not timed correctly.
* During 
Chronosphere, squishy heroes like Lina will be main target of Faceless Void in his ultimate.
Tinker
* If Tinker can stay outside of Chronosphere, Laser can cause Faceless Void to miss all his attacks.
* Faceless Void has low health and strongly relies on Time Walk's healing factor to remain alive. Getting caught by Tinker with Scythe of Vyse will almost always spell a quick end for Void.
* Rearm ignores 
Time Dilation completely.
Vengeful Spirit
[wiki] rating: 0.0 (winrate: 47% pickrate: 7%)Tinker
* 
Wave of Terror can reveal a Tinker attempting to hide in the trees and then 
Nether Swap and 
Magic Missile will both serve to interrupt/lock him down, should he attempt to town portal or reload.
Lina
* Lina can burst Vengeful Spirit down, provided she can land Light Strike Array before Vengeful Spirit lands her Magic Missile.
* Laguna Blade deals massive damage, often being enough to kill a squishy Vengeful Spirit.
Dazzle
[wiki] rating: 0.0 (winrate: 48% pickrate: 6%)Tinker
* 
Shadow Wave provides good sustain against Tinker's spammable abilities.
* 
Shallow Grave can stop Tinker from bursting down a target.
Lina
* Laguna Blade can kill Dazzle quickly before he casts Shallow Grave.
Lina
*
Mana Burn does tons of damage against Lina because of her high intelligence. The mana burn also prevents Lina from casting her full combo.
Spiked Carapace can easily be used to counter Lina's abilities because of their long cast animation, and could probably kill Lina outright if Laguna Blade is reflected.
*
Tinker
* His whole skillset acts like a counter to Tinker:
Impale prevents Tinker from blinding Nyx Assassin or fighting back, while giving Nyx' allies time to catch up to Tinker's position.
Mana Burn generally deals more damage to intelligence based heroes like Tinker
Spiked Carapace can stun Tinker at a moment of Nyx Assassin's choosing if March of the Machines has been cast. It is also quite easy to time Spiked Carapace against Heat Seeking Missiles.
Vendetta allows Nyx to approach Tinker in the trees or wait for him in common hiding spots and deal heavy damage to his low armor.
March of the Machines and 
Heat-Seeking Missile allow easy Spiked Carapace stuns.
Rearm and leave Tinker helpless.
*
*
*
*
Additional:
*
* As a fragile hero that relies on mana and intelligence items, Tinker is vulnerable to Mana Burn.
* Nyx Assassin's stuns can interrupt