Knife card is a strangecard in Playable Machines, a mod for The Binding of Isaac.

Removes one card or breaks the Trash for 5 rooms.

If Isaac leaves the room with this card active, it will perform an automatic action following these criteria in this order:

1) If there is any card in the inventory. It will remove the leftmost card.

2) If there is a card in the pocket slot, it will remove it.

3) If none of the above is possible, the Trash will be destroyed.

• Download Playable Machines from the Steam Workshop.