Binding of Isaac: Rebirth Wiki
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(in Repentance)

Tainted Apollyon is a character added in The Binding of Isaac: Repentance. He is the alternate version of Character Apollyon iconApollyon. Tainted Apollyon is unlocked by reaching HomeHome and using the Collectible Red Key iconRed Key, Cracked KeyCracked Key, or Soul of CainSoul of Cain to access a special room in one of the walls while playing as Apollyon.

Tainted Apollyon starts with 2 heart containers, Collectible Abyss iconAbyss in the consumable slot with 4 charges, and 1 red Abyss locust familiar that swarms erratically around Apollyon. When Abyss is used, items in current room are destroyed and turned into more locust familiars, with some items granting special types of locusts. They charge in the direction Tainted Apollyon is firing until they hit something, dealing Tainted Apollyon's damage per tick.

Strategy and Items[ | ]

  • The randomness of Character Apollyon iconApollyon's Collectible Void iconVoid is substituted for a guaranteed DPS upgrade with Collectible Abyss iconAbyss. This allows for easier judgement over whether active or mediocre items should be destroyed.
    • Some Items give Special locusts. However, many of these Items are quite powerful, and may be more valuable if collected than if they are turned into Locusts.
  • If Tainted Apollyon uses Abyss while picking up an active item, it will be turned into a locust; this is due to the change to items being able to be destroyed while being picked up in Repentance.
    • This does not apply to any other characters, as Tainted Apollyon is the only one who can have Abyss in his consumable slot, and therefore both pick up an active item and use Abyss simultaneously.
    • Be careful of swapping active items while picking up a new one as the old item will also be turned into a locust.
  • In rooms where the player is presented a choice between several items (i.e. Boss RushBoss Rush, Treasure RoomTreasure Rooms on the alternate path, Treasure RoomTreasure Rooms/Boss RoomBoss Rooms under the effect of Collectible More Options iconMore Options/Collectible There's Options iconThere's Options, certain Angel RoomAngel Room layouts, etc.) using Abyss will only give one locust for each item choice/set.
    • This does not apply to rooms where the player can collect multiple items without penalty such as a LibraryLibrary, which can be fully absorbed, making them extremely useful to find.
  • Locusts deal full damage per tick, meaning that it is important to find a balance between the number of locusts spawned and amount of damage dealt. Items from the Boss item pool are usually good sources of damage, so it may be worth it to seek them out immediately.
    • Collectible Ipecac iconIpecac, for example, generates a unique poison locust with increased damage when Abyss consumes it; however, taking the item itself is almost always a superior choice, as the damage bonus from Ipecac affects all locusts Apollyon has, scaling further than the single locust would.
  • Like Collectible Void iconVoid, Abyss can be used while holding an item, meaning it is completely possible to buy shop items and consume the item to grant a locust. One-time or low-use items such as Collectible Mom's Coin Purse iconMom's Coin Purse, Collectible Booster Pack iconBooster Pack can be great items to do this with.
    • This can also be used with blind item pedestals (such as on the alternate path or with Curse of the Blind), allowing Tainted Apollyon to use Abyss at the last second should he find the collected item to be undesirable.
  • Tainted Apollyon has very low Tears. Items such as Collectible The Sad Onion iconThe Sad Onion and Collectible Torn Photo iconTorn Photo, if not absorbed, can be invaluable.
    • While Collectible Soy Milk iconSoy Milk gives a heavy tears upgrade, it will also decrease the damage of your locusts drastically. As such, it may be better to destroy it for a locust.
  • Extension CordExtension Cord: Every locust will generate a beam of electricity, significantly increasing the range and damage potential of Tainted Apollyon.
  • Collectible Glowing Hourglass iconGlowing Hourglass: Due to a bug, Glowing Hourglass can be used to duplicate locusts via Isaac teleporting to the previous room with the Glowing Hourglass and then using it again.
  • Collectible Genesis iconGenesis will remove all locusts except his starting one, and does not replace them with items, making this item a gamble for Tainted Apollyon.
  • Collectible Birthright iconBirthright makes the locusts remain and track the enemy's position as long as the fire button is held, resulting in massive damage and allowing for less focus on aiming and more on dodging.
    • Birthright + Guppy: Each tick of damage dealt counts for the purposes of the Guppy transformation, generating a constant flow of blue flies.
  • Collectible Hive Mind iconHive Mind and Collectible BFFS! iconBFFS! all greatly increase the damage dealt by Tainted Apollyon's locusts. Seek out ShopShops for a chance to find one of them. Although with the aformentioned Guppy combo, Hive Mind is preferred.
  • In Repentance Co-Op if Tainted Apollyon dies his red locusts will persist, following and attacking from his ghost.

Unlockable Items[ | ]

Gallery[ | ]

Trivia[ | ]

  • Tainted Apollyon has four horns, unlike Apollyon, who only has two.
  • The Hebrew term Abaddon, and its Greek counterpart Apollyon appear in the Bible as a place of destruction and an archangel of the abyss. The supposed crack on Tainted Apollyon's face is a reference to that void that is used to reference the bottomless pit which is SheolSheol.
    • In Christianity, Apollyon appears in the Book of Revelations as the Destroyer and King of locusts, with him liberating his plague of locusts on Earth. Tainted Apollyon's cracked face referencing the events in the Apocalypse.
    • XVI - The TowerXVI - The Tower and XVI - The Tower?XVI - The Tower? propose a cycle of desired creation and destruction. The events in the apocalypse marking the end of the cycle to a new perfect era.
  • The crack on Tainted Apollyon's face could also be a reference to Azami Kurotani from the manga Uzumaki by Junji Ito, who has a very similar crack on her face.
  • The achievement for unlocking Tainted Apollyon is "The Empty", a possible title for the character.


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