Binding of Isaac: Rebirth Wiki

Added in Afterbirth

D12 is an unlockable activated item added in The Binding of Isaac: Afterbirth.


  • Re-rolls Rocks and Metal Blocks in the current room into Poops, other Metal Blocks, other Rocks, and/or TNT.
    • Poops of any type and TNT cannot be re-rolled, although other obstacles may be rerolled into them.



  • Added in RepentanceBook of Virtues Book of Virtues: Spawns blue die wisps on the middle ring. Wisps' tears have a 5% chance to reroll obstacles they hit. Poops and TNT barrels cannot be rerolled.

In-game Footage[]



  • This item functions almost identically to how the item of the same name works in the Antibirth mod.
  • Removed in Repentance The D12 is the only way in the game to remove metal blocks.
    • Added in Repentance Metal blocks can also be destroyed with Mega Mush Mega Mush.


PC Normal mode only YL6N 8KK4 (Treasure Room Treasure Room above spawn)


Bug Bug! Added in Repentance Using D12 while Tainted Forgotten Tainted Forgotten is sitting over a pit (not being thrown) will make his head and weapon disappear, rendering him unable to attack and preventing Tainted Soul Tainted Soul from picking him up, unless the room is left or the run is exited and resumed. This can easily cause a soft-lock.