Night Stalker
* 
Warcry makes it difficult to burst Sven down with both the passive (with 
Aghanim's Shard) and active component.
* Sven under the effect of 
God's Strength and his massive physical damage make Sven very dangerous to engage in the mid game.
Primal Beast
* Generally heroes who don't rely on magical damage, such as 
Sven, 
Phantom Assassin, and 
Outworld Destroyer, as they can practically ignore Flesh Heap's damage block.
Night Stalker
* Void's slow is dispelled by 
Doppelganger or counteracted by 
Phantom Rush.
* 
Spirit Lance's and 
Diffusal Blade's slow reduces Night Stalker's mobility and helps him or his ally escape if they're inflicted by Void or Crippling Fear.
* Night Stalker has no AoE abilites to take out Phantom Lancer's illusions. Even if Night Stalker gets an 
Aghanim's Scepter, there will be way too many illusions for Night Stalker to handle.
Primal Beast
* Any heroes that naturally buy Diffusal Blade like 
Phantom Lancer or have a mana break talent is a big issue for Pudge because of his low mana pool.
Night Stalker
* Heroes with stronger lane presence that can threaten to kill him: 
Batrider, 
Juggernaut, 
Ursa, 
Monkey King, 
Razor.
Primal Beast
* Anti-Tank heroes like: Razor, 
Necrophos, 
Undying.
Primal Beast
* The lifesteal of 
Feast scales accordingly to the max health of its target, which is effective against Pudge due to his high health and further health granted by stacks of Flesh Heap.
* Lifestealer can activate 
Rage to be spell immune, making Rot deal no damage.
* Pudge's plentiful health makes him an ideal target for Lifestealer's Aghanim's Shard ability, 
Open Wounds.
Primal Beast
* 
Doom disables the toggling of Rot and, if cast at the right time, may leave Pudge with a potentially lethal health drain.
* Doom's naturally high health, strength gain and damage output makes him a poor target for Pudge.
* The damage of Doom's 
Infernal Blade scales with the target's maximum health, which is particularly effective against Pudge due to his naturally high health and further health granted by stacks of Flesh Heap.
Primal Beast
* 
Kraken Shell can dispel Dismember after reaching a certain threshold of damage.
* Tidehunter's naturally high health, strength gain, and common itemization for survivability through magic resistance makes Tidehunter a poor target.
Primal Beast
* 
Heartstopper Aura is effective against high health heroes, and Pudge is no exception. Coupled with his self-damage from Rot, being around Heartstopper Aura could prove risky for Pudge.
* Regardless of how much health Pudge gains through Flesh Heap, 
Reaper's Scythe will often kill Pudge should his health fall below 40%, making Necrophos an ideal counter versus Pudge.
Primal Beast
* 
Corrosive Haze reveals Pudge's location, making it hard for him to use Meat Hook from the fog of war on Slardar's teammates or Slardar himself.
* 
Slithereen Crush interrupts Pudge while he is using Dismember.
* 
Guardian Sprint allows Slardar to avoid Meat Hook.
Primal Beast
* Pudge is particularly susceptible to Bristleback's 
Viscous Nasal Goo and 
Quill Spray due to his naturally low armor and poor agility gain.
* Bristleback, in combination with his strength gain, high health, common itemization for magic resistance and damage reduction from 
Bristleback makes him a poor target for Pudge.
Night Stalker
* 
Whirling Axes (Melee) provides a 60% miss chance, which can make the attack speed bonus from Hunter in the Night largely ineffective.
* 
Berserker's Rage together with 
Battle Trance and 
Fervor stacks gives him a high chance of rooting Night Stalker, which allows Troll Warlord to man-fight Night Stalker in any stage of the game, regardless of whether or not it's night.
* Night Stalker is not a common 
Monkey King Bar carrier to counteract this problem.
Primal Beast
* Legion Commander can use 
Press the Attack on an ally to dispel Dismember. The bonus health regeneration also partially counters the damage of Rot
* 
Duel can be used on Pudge whilst Rot is active, disabling toggling which may result in a lethal health drain that leaves Legion Commander with a successful duel.
Night Stalker
* 
Ensnare and 
Song of the Siren prevents Night Stalker from escaping and ganking during daytime or even nighttime.
* 
Rip Tide reduces Night Stalker's armor, making him easier to focus down.
* 
Mirror Image can be effective against Night Stalker, due to his single target abilities.
Additional:
* Mirror Image can be effective since Night Stalker cannot withstand fighting illusions. If he's unable to tell which Naga Siren is real, he will have a hard time landing his 
Void. However, if Night Stalker obtains an Aghanim's Scepter, the upgraded Void will hit and may even locate the real Naga Siren in fights.
Night Stalker
* Void's slow is useless against Lycan by activating 
Shapeshift.
* Night Stalker's single target abilities (with the exception of Void upgraded by Aghanim's Scepter) is not very effective against Lycan's 
Summon Wolves during the early and mid game.
Primal Beast
* The percentage-based primary-attribute reduction effect of 
Whirling Death can be devastating for Pudge due to his high strength gain through Flesh Heap.
* 
Reactive Armor's health regeneration and common itemization for magic resistance and durability makes Timbersaw a poor target for Pudge.
* 
Timber Chain's high mobility makes it difficult for Pudge to hook or deal much Rot damage to Timbersaw.
Night Stalker
* Heroes with illusions and summons can manfight Night Stalker: 
Terrorblade, 
Beastmaster, 
Broodmother.
Night Stalker
* Heroes with stronger lane presence that can threaten to kill him: Batrider, Juggernaut, Ursa, Monkey King, Razor.
Night Stalker
* Heroes with illusions and summons can manfight Night Stalker: Terrorblade, Beastmaster, Broodmother.
Night Stalker
* 
Bloodseeker's 
Rupture turns Night Stalker mobility against him and 
Thirst grants movement speed bonus and vision prevents Night Stalker from initiating and re-initiating.
Night Stalker
* Heroes that are hard to gank: 
Dragon Knight, 
Mars, 
Centaur Warrunner.
Primal Beast
* Heroes with many summons or illusions are much harder to catch with Meat Hook: 
Nature's Prophet, Phantom Lancer, 
Chen.
Night Stalker
* Heroes that can punish aggressive heroes, such as: 
Leshrac, 
Shadow Demon, 
Pugna, 
Death Prophet.
Night Stalker
* Heroes that are hard to gank: Dragon Knight, Mars, Centaur Warrunner.
Primal Beast
* Heroes with a high degree of mobility and invisibility are hard to catch with Meat Hook: 
Ember Spirit, 
Riki, 
Clinkz, 
Queen of Pain.
Night Stalker
* Heroes that can punish aggressive heroes, such as: Leshrac, Shadow Demon, Pugna, Death Prophet.
Night Stalker
* Heroes that are hard to gank: Dragon Knight, Mars, Centaur Warrunner.
Night Stalker
* 
Night Stalker's most skills are single targeted which allows other Meepos to Poof, Earthbind and kill him.
Night Stalker
* Heroes with stronger lane presence that can threaten to kill him: Batrider, Juggernaut, Ursa, Monkey King, Razor.
Primal Beast
* Heroes with many summons or illusions are much harder to catch with Meat Hook: Nature's Prophet, Phantom Lancer, Chen.
Night Stalker
* Heroes that rely on slows to get kills: 
Lifestealer, Night Stalker, Ursa, Phantom Assassin, Terrorblade.
Night Stalker
* Heroes that can punish aggressive heroes, such as: Leshrac, Shadow Demon, Pugna, Death Prophet.
Primal Beast
* Anti-Tank heroes like: Razor, Necrophos, Undying.
Primal Beast
* Oracle can negate and shut down Primal Beast simply with Fate's Edict, especially in the early game, as a majority of his damage-dealing spells are magic.
* Oracle can interrupt Primal Beast's 
Onslaught charge with a well-timed Fortune's End.
* Primal Beast's lethal burst damage combos can be further stalled with False Promise; combined with Fate's Edict and regen from Purifying Flames, Oracle can even completely negate Primal Beast's offense.
Night Stalker
* Heroes with long disables, like 
Lion, Night Stalker, or 
Legion Commander, can prevent Oracle from using spells or items.
Primal Beast
* 
Sanity's Eclipse deals more damage the less max mana the heroes hit by it have, making Pudge an ideal target.
* Outworld Destroyer can save allies or himself caught by Dismember or Meat Hook with 
Astral Imprisonment.
Night Stalker
* Any heroes with silences can negate the majority of Outworld Destroyer's damage output: Death Prophet, Night Stalker, 
Drow Ranger, 
Doom .
Primal Beast
* Abaddon can activate 
Borrowed Time to dispel Dismember; breaking the disable and potentially allowing Abaddon to escape.
* 
Aphotic Shield can be cast on an ally to dispel the stun of Dismember, which can make kills difficult to secure, given that Dismember is Pudge's only reliable disable.
* Pudge lacks a mobility without a 
Blink Dagger, causing him to be easily chased with 
Curse of Avernus. The silence also prevents him from toggling off his Rot.
Night Stalker
* Heroes that have long silences, such as Night Stalker and 
Silencer, will prevent Abaddon from saving his allies effectively and disable the active component of Borrowed Time.
Primal Beast
* 
Track can easily keep vision on Pudge, making it very hard for him to hook Bounty Hunter or his teammates from the fog of war.
* 
Shuriken Toss cancels Dismember from great range.
Night Stalker
* Night Stalker's 
Crippling Fear at night prevents Shadow Walk for an extended period of time and his Void will make Phase Boots useless. If Night Stalker has True Sight, he can shutdown Bounty Hunter's sneak kill.
Primal Beast
* 
Impale and 
Spiked Carapace can be used to cancel Dismember easily, and can even do so when Pudge uses it on Nyx Assassin, if timed correctly.
Night Stalker
* Heroes that have a weak laning stage: 
Spectre, 
Nyx Assassin, 
Clockwerk, 
Spirit Breaker, 
Omniknight, 
Pudge.
Night Stalker
* Night Stalker can easily find Tinker in the trees during 
Dark Ascension.
* Void's mini-stun will stop Rearm and 
Keen Conveyance
* 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.
Primal Beast
* Meat Hook can be used to pull Tinker to Pudge while he is hiding in the trees, and a follow up with Dismember and Rot can lead to a valuable kill, as Tinker doesn't buy many survivability items.
* Flesh Heap makes it hard for Tinker to deal serious damage.
Night Stalker
* Heroes with low mobility that rely on spells: 
Zeus, 
Lina, 
Crystal Maiden.
Primal Beast
* Meat Hook can cancel 
Freezing Field, even if Crystal Maiden has 
Glimmer Cape.
* She is also slow and fragile, making her a good target for ganking.
Night Stalker
* Crippling Fear makes it so Axe might use Blink Dagger right into an AoE silence in the middle of everyone.
* Void cripples Axe's already bad movement speed and attack speed.
* 
Hunter in the Night makes it impossible for Axe to catch up to fleeing or escape from Night Stalker during the night.
* Lastly, Dark Ascension gives full vision over Axe before he initiates, making the opponents all recognize his location immediately and allowing Night Stalker to prevent it or vocally tell his team if needed.
* Night Stalker has very high strength gain, even in the lane, so a successful Culling Blade is very unlikely.
* Axe's 
Blade Mail will likely do nothing to Night Stalker because of his high health and certain requirements for him to do the most damage to be true.
Primal Beast
* Long lockdown is a great way to deal with Axe to prevent Berserker's Call from being used, heroes such as Legion Commander, Beastmaster and 
Primal Beast are good examples of this.
Night Stalker
* Heroes that have a weak laning stage: Spectre, Nyx Assassin, Clockwerk, Spirit Breaker, Omniknight, Pudge.
Primal Beast
* Pudge's Dismember stops Spectre from escaping with 
Haunt.
* He can easily tank the damage reflected by 
Dispersion due to his high strength and the healing from Dismember.
* Should Spectre try to get away through the trees or over a cliff with 
Spectral Dagger, Pudge can hook her back.
* Spectre takes a long time to become powerful, and Pudge can ruin her early game with ganks.
Night Stalker
* Heroes with low mobility that rely on spells: Zeus, Lina, Crystal Maiden.
Primal Beast
* Zeus likes to stay far back in fights, dealing his damage uninterrupted, but once he gets hooked into the fight, he usually dies very quickly.
* Pudge's high strength from Flesh Heap makes it very hard for Zeus to burst him down.
* Zeus' low health pool makes him very vulnerable to the damage from Meat Hook, Rot and Dismember.
Night Stalker
* Crippling Fear can silence Faceless Void for a long time, preventing him from using his Time Walk and Chronosphere.
Primal Beast
* Heroes who recklessly jump on Pudge with their gap-closing abilities will be easy targets for Pudge's Meat Hook and Dismember Combo: Phantom Assassin, 
Faceless Void, Queen of Pain etc.
Night Stalker
* Heroes with weaker mobility will struggle to keep up with Night Stalker: 
Gyrocopter, Ursa, Drow Ranger
Primal Beast
* Heroes who have low or high armor but very high health will be difficult for drow to burst down quickly: Primal Beast, 
Axe, Centaur Warrunner.
Additional:
* Meat Hook can pull Drow Ranger to Pudge, disabling her 
Marksmanship.
* Following up with Dismember will prevent Drow Ranger from using 
Gust or 
Shadow Blade.
Night Stalker
* Heroes with weaker mobility will struggle to keep up with Night Stalker: Gyrocopter, Ursa, Drow Ranger
Primal Beast
* Abilities that deal low damage with high amounts of instances are irrelevant against Pudge during Flesh Heap's active: Gyrocopter's 
Rocket Barrage and 
Dark Seer's 
Ion Shell are just a couple examples.
Night Stalker
* Heroes that have a weak laning stage: Spectre, Nyx Assassin, Clockwerk, Spirit Breaker, Omniknight, Pudge.
Primal Beast
* Durable heroes: Axe, 
Dawnbreaker, 
Bristleback, Mars, Omniknight, 
Tidehunter, 
Wraith King, Primal Beast, 
Underlord.
Night Stalker
* Dark Ascension reduces vision for the enemy team, which makes it more difficult for Magnus to initiate with Blink Dagger and Reverse Polarity. It is also more likely that Night Stalker will scout out Magnus with Aghanim's Scepter and a 
Gem of True Sight, after which he can silence Magnus with Crippling Fear.
Night Stalker
* Dark Ascension also allows Night Stalker to fly over Proximity Mines without triggering them.
* Crippling Fear is effective in stopping Techies from using Blast Off and Void is effective in stopping them from running to the safety of their mines.
Night Stalker
* Crippling Fear is a silence that can last up to 8 seconds during night, rendering Storm Spirit tied limited to his items in a fight.
* Dark Ascension allows Night Stalker to initiate on Storm Spirit across the impassable terrain around the middle lane, rendering Storm vulnerable in the early game and prevent him from snowballing.
Additional:
* Storm Spirit is absolutely helpless if caught within Night Stalker's silence range.
* Common items a Storm Spirit will build will not remove the AoE silence.
Primal Beast
* Heroes with a high degree of mobility and invisibility are hard to catch with Meat Hook: Ember Spirit, Riki, Clinkz, Queen of Pain.
Night Stalker
* Night Stalker has a huge, almost instant silence through Crippling Fear. The main problem is that he can get it off while Queen of Pain barely has any vision of him if he creeps up to her during Dark Ascension. She'll have to play very carefully before she gets a 
Black King Bar or a 
Eul's Scepter of Divinity.
Primal Beast
* Heroes who recklessly jump on Pudge with their gap-closing abilities will be easy targets for Pudge's Meat Hook and Dismember Combo: Phantom Assassin, Faceless Void, Queen of Pain etc.
Night Stalker
* Keeper of the Light's Aghanim's Scepter upgrade loses much of its power, due to Night Stalker being able to reduce the duration of daytime by a lot.
Additional:
* Crippling Fear prevents Keeper of the Light from using his spells to keep his team alive during team-fights.
* Dark Ascension is very strong against Keeper of the Light, as it allows Night Stalker to jump the backline and quickly kill the squishy Ezalor, especially when combined with the slow from Void.
Night Stalker
* Crippling Fear is a good way to shut down and gank Invoker in the early game..
* Void deals good damage to Invoker and makes escaping harder.
* With Hunter in the Night and Void, Invoker can't get away from Night Stalker and won't be able to catch him with Sun Strike during the night.
Night Stalker
* Void can be used to cancel Requiem of Souls.
* Crippling Fear prevents Shadow Fiend from using Shadowraze or Requiem of Souls.
* With Dark Ascension and Gem of True Sight, Night Stalker can find and kill Shadow Fiend easily. He is also a tanky hero that can fight Shadow Fiend at any stage of the game.
Night Stalker
* May effortlessly get to and take down Disruptor.
* Void deals heavy single target damage and slow. Lacking innate escape mechanisms justs puts Disruptor in trouble
* Crippling Fear silences, and Disruptor is extremely dependant on abilities to work and to fend for himself.
* Hunter in the Night provides Night Stalker movement speed, attack speed and strengthens his abilities during night time, allowing him to easily catch up and obliterate Disruptor
* With Black King Bar, it's mostly assured to target down Disruptor.
Night Stalker
* Void is a potent nuke that is devastating to Puck's low health pool.
* Crippling Fear silence can prevent Puck from casting spells, leaving it vulnerable.
Additional:
* Puck cannot use any of its normal means to survive should Night Stalker catch it within Crippling Fear, and goes down quickly.
Night Stalker
* Void's mini-stun and silence from Crippling Fear will stop Pudge from using Dismember or turning off his Rot.
* Night Stalker has naturally high health, strength gain and common itemization for survivability through magic resistance, making Night Stalker a poor target for Pudge.
Primal Beast
* Heroes who build a Black King Bar (or have any sources of spell immunity) to channel abilities/items can still get interrupted by Dismember: 
Enigma, Juggernaut, Phantom Assassin, Pugna, 
Elder Titan.
Primal Beast
* Heroes who build a Black King Bar (or have any sources of spell immunity) to channel abilities/items can still get interrupted by Dismember: Enigma, Juggernaut, Phantom Assassin, Pugna, Elder Titan.
Night Stalker
* Earthshaker must be careful not to use Blink Dagger or Aghanim's Scepter upgraded 
Enchant Totem to blink into Riki's 
Smoke Screen or Night Stalker's Crippling Fear, as these field effects will instantly silence Earthshaker and prevent him from initiating.
Additional:
* 
Fissure has a short stun and creates an impassable ridge. However, Night Stalker can fly over it during Dark Ascension.
* Night Stalker can find Earthshaker, disable his Blink Dagger with Void, and then take him out with Crippling Fear.
* Earthshaker may fail his blink combo against Night Stalker's team if he is not careful, as he can blink into the silence.
Primal Beast
* Heroes who have high health are a problem for Sniper because he likes to attack the closest target and sit at the back, much like a Terrorblade so when that hero doesn't die; he's forced to show his position for a very long time: Centaur Warrunner, Legion Commander, Primal Beast.
Additional:
* Sniper has a low health pool and strength gain, making him vulnerable to Pudge's magical and pure damage.
* Sniper usually likes to deal damage away from the fight, and Meat Hook is capable of bringing him to the front lines.
* 
Assassinate won't do much damage against Pudge because of his high strength gain and the strength bonuses from Flesh Heap.
* 
Shrapnel will be mostly blocked by Flesh Heap's active.
Night Stalker
* Heroes with silence such as Riki, Silencer, or Night Stalker prevents Skywrath Mage from using his spells.
Primal Beast
* Heroes that have a channeled ability that can be interrupted by Meat Hook: 
Shadow Shaman, 
Witch Doctor, Enigma, 
Bane.
Primal Beast
* Heroes that have a channeled ability that can be interrupted by Meat Hook: Shadow Shaman, Witch Doctor, Enigma, Bane.
Night Stalker
* Heroes that have a weak laning stage: Spectre, Nyx Assassin, Clockwerk, Spirit Breaker, Omniknight, Pudge.
Night Stalker
* Heroes that have a weak laning stage: Spectre, Nyx Assassin, Clockwerk, Spirit Breaker, Omniknight, Pudge.
Primal Beast
* Fragile,slow heroes whom Pudge can outlive (Crystal Maiden,
Muerta,
Sniper)
Night Stalker
* Durable heroes can stand against Tusk during 1v1: Axe, Dragon Knight, Night Stalker, Centaur Warrunner, Wraith King and more.
Night Stalker
* Heroes with mobility/escape mechanisms to dodge Ancient Apparition abilites, or to easily jump on him: Riki, Queen of Pain, Phantom Assassin, 
Windranger, 
Bounty Hunter, Spirit Breaker, Night Stalker, 
Storm Spirit, Juggernaut, etc.
Primal Beast
* Abilities that deal low damage with high amounts of instances are irrelevant against Pudge during Flesh Heap's active: Gyrocopter's Rocket Barrage and Dark Seer's Ion Shell are just a couple examples.
Night Stalker
* Heroes with low health: 
Lich, Crystal Maiden, Lion.
Night Stalker
* Heroes with low mobility that rely on spells: Zeus, Lina, Crystal Maiden.
Night Stalker
* Heroes with low health: Lich, Crystal Maiden, Lion.
Primal Beast
* Heroes that have a channeled ability that can be interrupted by Meat Hook: Shadow Shaman, Witch Doctor, Enigma, Bane.
Night Stalker
* 
Phoenix turns night to day, overriding Dark Ascension during 
Supernova.
Night Stalker
* Void can interrupt 
Icarus Dive.
* His Crippling Fear's silence will shutdown a spell caster Phoenix.
* However, Phoenix punishes Night Stalker with Supernova because it will turn night into day, and it has a higher priority than Dark Ascension, effectively canceling the passive bonuses Night Stalker gets from Hunter in the Night.
Primal Beast
* Heroes with a high degree of mobility and invisibility are hard to catch with Meat Hook: Ember Spirit, Riki, Clinkz, Queen of Pain.
Night Stalker
* The long silence at night prevents Clinkz from escaping with invisibility if Night Stalker can sneak up on him. He also has really low base health, so Night Stalker can usually kill him alone during one cast of Crippling Fear at night.
Primal Beast
* Generally heroes who don't rely on magical damage, such as Sven, Phantom Assassin, and Outworld Destroyer, as they can practically ignore Flesh Heap's damage block.
Primal Beast
* If Phantom Assassin jumps on Pudge first with 
Phantom Strike, she will be a very easy target for Pudge's 
Meat Hook and 
Dismember combo.
* Even though it can deal damage based on Pudge's max health, 
Fan of Knives from Aghanim's Shard cannot disable Pudge's 
Flesh Heap as Flesh Heap is one of the few passive abilities that cannot be disabled by break.
* Both Meat Hook and Dismember ignore spell immunity which allows Pudge to disable Phantom Assassin even while she has Black King Bar active.
* Pudge occassionally buys armor items like Blade Mail, which in combination with many stacks from Flesh Heap can make Phantom Assassin have little effect against Pudge.
Primal Beast
* Heroes with a high degree of mobility and invisibility are hard to catch with Meat Hook: Ember Spirit, Riki, Clinkz, Queen of Pain.
Night Stalker
* With Dark Ascension and Gem of True Sight, Night Stalker can easily find and kill Riki. Riki will also find it harder to kill the tanky Night Stalker than he would many other heroes.
Primal Beast
* If Meat Hook is used before 
Leap, Mirana may be able to escape Pudge's grasp by leaping to safety.
* The invisibility from 
Moonlight Shadow gives a degree of mobility, which can make Mirana or her teammates difficult targets to hook.
* 
Sacred Arrow can be used to cancel Dismember from long distances.
Night Stalker
* The long silence of Crippling Fear at night prevents Mirana from escaping with Moonlight Shadow and Leap. She also has really low base health, so Night Stalker can usually kill her during one cast of Crippling Fear at night.
* With Dark Ascension and Gem of True Sight, Night Stalker can find and kill Mirana, and he is a tanky hero capable of fighting Mirana any stage of the game.
Primal Beast
* If Meat Hook is used before 
Blink, Anti-Mage may be able to escape Pudge's grasp by blinking to safety.
* 
Counterspell grants Anti-Mage a large degree of magic resistance, a damage type Pudge is highly reliant on to secure kills. This makes Anti-Mage a bad target for Pudge. The active can also block Dismember if timed correctly.
* 
Mana Break can quickly drain Pudge's low supply of mana, which may render Meat Hook and Dismember unusable.
Night Stalker
* Crippling Fear makes Night Stalker one of the best early game gankers to shut down Anti-Mage.
* Night Stalker's low mana pool causes him to take little damage from Mana Void.
Night Stalker
* Heroes with stronger lane presence that can threaten to kill him: Batrider, Juggernaut, Ursa, Monkey King, Razor.
Night Stalker
* Heroes with weaker mobility will struggle to keep up with Night Stalker: Gyrocopter, Ursa, Drow Ranger
Night Stalker
* Heroes with stronger lane presence that can threaten to kill him: Batrider, Juggernaut, Ursa, Monkey King, Razor.
Primal Beast
* Heroes who build a Black King Bar (or have any sources of spell immunity) to channel abilities/items can still get interrupted by Dismember: Enigma, Juggernaut, Phantom Assassin, Pugna, Elder Titan.
Night Stalker
* Heroes with illusions and summons can manfight Night Stalker: Terrorblade, Beastmaster, Broodmother.
Primal Beast
* Heroes with abilities that can lock down Terrorblade and prevent him from using Sunder: Bane, Batrider, 
Earthshaker, Elder Titan, Faceless Void, 
Invoker, Legion Commander, Mars, Primal Beast, Riki, Shadow Shaman, Silencer, 
Vengeful Spirit, 
Void Spirit.
Primal Beast
* 
Dark Pact dispels Dismember if timed correctly.
* 
Pounce allows Slark to escape Pudge's Rot once Dismember is over, and allows him to dodge hooks.
* 
Shadow Dance hides Slark and grants him a high degree of mobility, which can make him a difficult target to hook and also protects him from Pudge's Dismember (including allies with an Aghanim's Shard).
Night Stalker
* With Dark Ascension he can keep vision on Slark, disabling his Shadow Dance regeneration.
* Night Stalker is very fast so without the Pounce in lane, he can simply out distance him during the night.
* Slark is matched in night vision by only a few heroes, Night Stalker happens to be one of them.
Night Stalker
* Heroes that can punish aggressive heroes, such as: Leshrac, Shadow Demon, Pugna, Death Prophet.
Primal Beast
* Heroes who build a Black King Bar (or have any sources of spell immunity) to channel abilities/items can still get interrupted by Dismember: Enigma, Juggernaut, Phantom Assassin, Pugna, Elder Titan.
Primal Beast
* Meat Hook can prove annoying for Pudge if Rubick 
Spell Steals it, allowing Rubick to easily hook and save his allies being Dismembered.
Night Stalker
* Crippling Fear silences nearby heroes and cannot be dispelled, which hinders Rubick's way to retaliate when being jumped on.
* With Hunter in the Night and Dark Ascension, Night Stalker can find Rubick easily in teamfights. The two spells grants more than enough damage to hunt Rubick down without defensive items.
Primal Beast
* 
Shukuchi grants Weaver invisibility and a high degree of mobility for a short time, which can make him a difficult target to hook.
* 
The Swarm beetles are difficult for Pudge to remove, due to his low base attack time and poor agility. Additionally, it can be used to can scout out Pudge's location.
* Should an ally get snagged by Meat Hook, Weaver can use Aghanim's Scepter upgraded 
Time Lapse on them to send them back to where they were before hooked, even if Pudge has already started to Dismember them.
Night Stalker
* The long silence of Crippling Fear at night prevents Weaver from using his Shukuchi or Time Lapse.
* With Dark Ascension and Gem of True Sight, Night Stalker can easily find and probably kill Weaver.
* Hunter In the Night's attack speed bonus removes The Swarm's beetles very quickly.
Night Stalker
*
Chaos Bolt can stun Night Stalker outside of Crippling Fears relatively small radius. 
Reality Rift is a great way to force Night Stalker to fight Chaos Knight, a hero with massive health and damage output. It also forces Night Stalker's Crippling Fear off his primary target.
Phantasm illusions unless Night Stalker buys 
Aghanim's Scepter.
*
* Night Stalker doesn't have a lot of ways to deal with multiple targets, which makes him vulnerable to
Primal Beast
* Unlike any other illusion heroes, Chaos Knight is the worst target for Pudge to hook as it will definitely backfire him.
Phantasm are significantly tankier than most illusion and deal full damage, which will quickly kill Pudge due to his low armor.
Reality Rift, which reduces his already abysmal base armor even lower.
*
* it becomes worse if pudge is affected with
* Low movement speed and low mobility means Pudge will struggle to escape or outrun Chaos Knight in most cases.