Swamp Card is an unlockable consumable in Eclipsed, a mod for The Binding of Isaac.

Creates a Super Secret room adjacent to the current room, similar to Red Key.

The room will contain a Rotten Heart and a Rotten Beggar.

The card will not be used if neighboring rooms do not allow placing a new room.

Defeat Ultra Greedier as Tainted Unbidden.

The following special synergies and interactions for Swamp Card have been documented.

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

• Download Eclipsed from the Steam Workshop.