Castle is a consumable in Shotgun King Cards, a mod for The Binding of Isaac.

While held When Isaac enters a room containing an item, the item pedestal will appear with a secondary ghostly item behind it.

On use Activates Flip: Cycles between the real and ghostly items on pedestals, allowing Isaac to collect the ghostly variant.

The following special synergies and interactions for Castle have been documented.

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

• Download Shotgun King Cards from the Steam Workshop.