Unyielding Gatekeeper [Murders at Karlov Manor]

Disguise 1W (You may cast this card face down for 3 as a 2/2 creature with ward 2. Turn it face up any time for its disguise cost.)

When Unyielding Gatekeeper is turned face up, exiles another target in permanent nonland. If you controlled it, return it to the battlefield tapped. Otherwise, its controller creates a 2/2 white and blue Detective creature token.