Defenestrated Phantom

Morph never sat comfortably in white, because white rarely wants an inert three-mana body idling on the table waiting to matter. Disguise fixes that by arming the down side: ward means the concealed creature already taxes any removal spell aimed at it before you commit to the flip, forcing an opponent to sequence their interaction around a card they cannot see. The guessing game is genuine as a result. Is this a cheap trader you can afford to swing into, or six mana of flying threat you cannot let unmask on the attack step? Turning face up happens at any time, so the phantom can flip up mid-combat to ambush a would-be blocker or eat an attacker it was never supposed to trade with, and against a removal spell it can reveal itself in response during a main phase to become a body the opponent did not price for. On rate alone, for a 4/3 flier is unremarkable; the design lives in the gap between the down cost and the flip, and in the information asymmetry ward enforces while the card stays hidden. This is a workmanlike execution rather than a marquee one, but it demonstrates cleanly why disguise exists at all: the concealed shell finally has teeth of its own before you pay to reveal what is underneath.