Expose the Culprit

Choose one or both —

• Turn target face−down creature face up.

• Exile any number of face−up creatures you control with disguise in a face-down pile, shuffle that pile, then cloak them. (To cloak a card, put it onto the battlefield face down as a 2/2 creature with ward . Turn it face up any time for its mana cost if it's a creature card.)