Rageform

A four-mana bet placed sight unseen, and the blindness is the entire design. Manifest slides a face-down card onto the battlefield as a 2/2 without showing it to anyone, and this enchantment reshapes itself into an Aura to bolt double strike onto whatever surfaces. You never choose the payload: the mechanic denies selection by construction, so the swing between best and worst case is enormous. Hit a heavy creature and you have a hidden 2/2 that already trades twice in combat and can pay its real cost to unfold into its larger self at any moment. Hit anything that cannot flip (a fixing card, an instant, a sorcery) and you are welded to a double-striking 2/2 forever, since only creature cards manifest into something turnable. Double strike is what makes the ceiling loud: a concealed fatty swinging for both first-strike and normal damage is genuine reach, and revealing it mid-combat rewards patience. But the same randomness that produces the ceiling produces the floor, and nothing on the card lets you steer between them. It prices variance with unusual transparency: the payoff tracks exactly how much you loaded your deck toward expensive creatures, and the tax is paid in tempo when the flip disappoints. The Aura template is a tidy trick, letting one object both spawn the body and grant the keyword, but the real decision happens before the game, in how you weight the deck around it.