Kasmina's Transmutation

Blue's hard answers to a threatening creature tend to erase the thing entirely: Pongify and Reality Shift trade the problem body for something the caster controls, and tap-down enchantments neutralize it without removing it. This works a third way. It leaves the creature on the battlefield but hollows it out, stripping every ability and pinning base power and toughness at 1/1. The distinction is the whole point. There is no death trigger to trip because nothing dies, no engine to reassemble because the abilities are simply gone, and the game-warping threat is now a vanilla 1/1 that can neither race nor pressure anything of substance. The lineage runs closer to Darksteel Mutation than to any temporary shrink like Ovinize: a permanent lockdown rather than a combat-step trick. As an Aura it must target on the stack, so hexproof and shroud sit outside its reach, the lone gap in an otherwise total answer. And because it lands on an opponent's creature, the usual Aura tax works differently: if they bounce their own threat to shed the enchantment, that is a one-for-one, not the card disadvantage a buff Aura risks. The real seam is that the creature stays in play, so an anthem or a pump spell can claw back some of the stat line, though never the abilities. Against a permanent built to punish removal, that residual 1/1 is a small price for deleting it as a game object.