Binding of Isaac: Rebirth Wiki
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(in Afterbirth † and Repentance)

Backstabber is a passive item added in The Binding of Isaac: Afterbirth †.

Effects[ | ]

  • When tears land on the "back" of enemies, they deal double damage and inflict bleeding.
    • (except in Repentance) Bleeding enemies take damage equal to 10% of their maximum health every 5 seconds. Bosses cannot be inflicted with bleeding, but will still take the extra damage.
    • (in Repentance) Enemies bleed for 5 seconds, bleeding enemies take damage based on how quickly they move; the faster the enemy, the more damage they take. While moving, a bleeding enemy leaves behind red creep that can damage other enemies. Bosses can also be inflicted with bleeding.
    • The extra damage is dealt even if the enemy is already bleeding.

Synergies[ | ]

  • Collectible Brimstone iconBrimstone: Brimstone lasers will pierce the enemy and inflict Backstabber's effect.
  • (in Repentance)Collectible Dark Arts iconDark Arts: Freezing an enemy from its back using Dark Arts will apply Backstabber's effect.
  • (except in Repentance) Shooting familiars: Tears fired by familiars can inflict the effects of Backstabber.
  • Collectible The Ludovico Technique iconThe Ludovico Technique: The Ludovico tear will nearly always backstab when over an enemy.
  • Collectible Technology 2 iconTechnology 2: will pierce both sides of the enemy and inflict Backstabber's effect.
  • Worm Trinkets, like Hook WormHook Worm and Wiggle WormWiggle Worm make Backstabber's effect possible even if the enemy is facing Isaac.

Interactions[ | ]

In-game Footage[ | ]

Trivia[ | ]

  • This item is a reference to the backstabbing mechanic in various video games, where backstabbing results in more damage done to the target. However, the mechanic of backstabbing is usually applied to melee weapons, not ranged weapons.
    • It may also be a reference to Judas' betrayal of Jesus.
  • Backstabber was originally an unofficial item which was supposed to showcase the modding capabilities of Afterbirth+ in the PAX 2016 livestream. However, all items included in the demo were later added to the final game.


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