Outworld Destroyer/Counters

Bad against...

 * prevents Outworld Devourer from casting, his main source of damage, and disables him for a long duration. His innate lack of durability compared to Legion Commander means he is unlikely to win the Duel.


 * during laning phase prevents Outworld Devourer from harassing with, while allowing Templar Assassin to tear through his low health pool more quickly. Even in later stages of the game, Outworld Devourer cannot quickly deplete Templar Assassin's Refraction charges.
 * If timed correctly, can completely negate damage from.
 * Outworld Devourer has no escape mechanism, so getting slowed by a can easily prove fatal.


 * Outworld Devourer's high mana pool, high intelligence, and low health causes him to take heavy damage from.
 * If timed correctly, will return full damage from  back to Outworld Devourer. Even a reflected  can deal significant damage and make him vulnerable to a follow-up from Nyx Assassin
 * is also the perfect tool against : if used on Nyx, he can reflect the damage back as he comes out of the prison by casting the ability while imprisoned; if used on any other target, Nyx can come and stand close to it and use it to reflect the damage.


 * protects key targets from all of Outworld Devourer's abilities.


 * heavily damages Outworld Devourer if he tries to use.
 * prevents Outworld Devourer from using and makes him more vulnerable to magic damage.
 * Pugna has higher Intelligence growth than Outworld Devourer, making minimally effective.


 * Silencer's will heavily reduce Outworld Devourer's damage output, particularly from.
 * and will take Outworld Devourer out of the fight unless he has built Black King Bar.


 * OD has no gap-closing capabilities and short ranges all around, making avoiding him a very easy task for Sniper if OD does not receive any help. In lane, Sniper can very easily kite OD to prevent Astral denies due to his long range. Shrapnel also prevents Astral-Blink escapes.

Others

 * Any heroes with silence:, ,.
 * Any heroes with high intelligence, such as, receive little to no damage from.
 * 's makes him immune to all of OD's spells, as does 's.
 * Like many others, Outworld Devourer can't do much against 's.

Items

 * Any instant healing items (,, ...) can be used inside his and the healing properties will take effect before the damage from the prison, potentially saving you.
 * significantly reduces 's damage.
 * makes the user become immune to all of OD's spells.

Good against...

 * doesn't work versus because it does pure damage.
 * Anti-Mage cannot burn all of OD's mana if he has no disables.


 * and removes mana from Wraith King, making him unable to use.


 * Huskar's main source of survivability,, doesn't work versus OD because does pure damage.
 * OD can dodge with, leaving OD unharmed and Huskar vulnerable with half HP.
 * can deal massive damage to Huskar before he builds up his stacks.


 * does pure damage to Timbersaw, who has a lot of armor from.
 * Even if Timbersaw gets away from OD, he will still lose a lot of intelligence, making it harder to cast his high mana cost spells.

Others

 * Any heroes with low intelligence will die quickly or even instantly to :, . The 40% max mana drain also helps to ensure that heroes with built-in escape mechanisms die.
 * Any heroes with medium intelligence but have high mana usage or low intelligence but very tanky will have problem in casting spells when some of their intelligence are stolen by : ,

Works well with...

 * massively increases OD's survivability.
 * Omniknight can spam on OD thanks to.


 * increases OD's DPS by a lot because OD has pretty low attack speed and allows him to steal intelligence faster.


 * Silencer's passive intelligence steal will increase the intelligence difference between OD and his enemies, making them take more damage from and causing low manapool heroes to struggle with their mana costs.
 * Global Silence​ will prevent enemies from disabling OD, allowing him to land easy attacks.

Others

 * Any heroes that spam spells benefit greatly from :, ,
 * Healer-based supports especially pair well with Outworld Devourer due to allowing them to constantly keep their team alive and not needing  as badly. This includes, , , , , and.
 * Any heroes that benefits from 's setup:, ,

List of heroes that counter Outworld Devourer, and list of heroes that work well with Outworld Devourer.