Is Exit Specialist legal in Standard, Modern, and Commander?

Exit Specialist is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Exit Specialist?

Exit Specialist is a Creature — Human Detective. Its oracle text reads: "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."