Soul of the Forgotten is an unlockable consumable in The Binding of Isaac, added in the Repentance DLC.

Spawns The Forgotten as a temporary secondary character, that can be controlled by the same inputs as Isaac, and dies if his 3 Bone Hearts run out, or Isaac leaves the room.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this consumable for the previous Repentance version, check this page instead.

Defeat Hush and complete Boss Rush as Tainted Forgotten.

The following special synergies and interactions for Soul of the Forgotten have been documented.

* Note that not all possible synergies and interactions are listed here.

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Soul of the Forgotten

• Spawns a friendly controllable Forgotten for the room
• Clear Rune: Recharge 4

The following sounds are related to this consumable.

• Check out the consumable description on the external Isaac Wiki.