Misthoof Kirin
The 2/1 body with flying and vigilance is the tell: no one wants to cast this at its printed rate on the third turn, where the fragile toughness turns any evasive attacker into a trade waiting to happen. The whole card is arranged around the megamorph line instead. Deploy it hidden for three, let the opponent burn a removal spell or a combat trick on an unknown blocker, then flip when they have committed to guessing wrong. The counter is what upgrades the maneuver from a stat-neutral surprise into a genuine ambush: a face-down 2/2 becomes a 3/2 flier with vigilance at instant speed, plucking an attacker out of the air and still able to swing back the moment its controller reaches their own combat step. That counter is the structural difference megamorph introduced over the older morph designs, which left the creature at its face-up printed stats and charged only for the reveal. Here the flip always adds a point of power and toughness, so even a face-down card the opponent has correctly read still threatens to grow into a larger evasive body the instant you leave mana untapped. A measured build: the keyword stack does its work through the morph window, while the brittle base ensures this is a card you set up rather than one you jam on curve.
