Exit Specialist is a uncommon Creature — Human Detective card from Murders at Karlov Manor (MKM), collector number 55. Current market price: $0.23 (foil $0.34), TCGplayer market prices via Scryfall.
This creature can't be blocked by creatures with power 3 or greater. Disguise {1}{U} (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 this creature is turned face up, return another target creature to its owner's hand.