Darksteel Mutation

White's answer to a creature it cannot afford to kill. The Aura it drops does not destroy anything; it rewrites the thing it enchants into a 0/1 Insect artifact with indestructible and nothing else, stripping every ability, card type, and creature type off the frame. The blanking is half the point: with all abilities gone, the creature cannot trigger a death effect even if it dies, and the indestructibility handles the rest, since it cannot be burned or wrathed off the board to give the enchanted player the card back where they want it. It just sits there, harmless, blocking. The design solves the specific problems that outright removal walks into: a commander that shrugs off destruction, a death trigger you would rather not hand over, an enabler whose value comes from dying that a kill spell only feeds. It shares its logic with Imprisoned in the Moon and Kenrith's Transformation, each converting "kill the creature" into "erase everything that made the creature a threat" while leaving a body that can still chump. The soft-answer cost is real. It is an enchantment, so it can be peeled off, bounced, or blinked, and a player with a sacrifice outlet can simply feed the 0/1 to escape the lock and rebuild from the yard. Indestructible stops damage and destruction, not sacrifice. But for two mana, freezing the scariest creature on the table into a shape that cannot even die on its own terms is about as durable as color-pie-faithful white removal gets.