Spiteful Shadows
A burn redirector dressed as an Aura, and the wrinkle is whose damage it punishes. The clause keys off control, not ownership: whoever controls the enchanted creature eats whatever damage that creature absorbs, so the entire card is built around enchanting something the opponent controls. The natural read is to slap it on their biggest threat and then poke the creature with cheap burn, turning one Aura plus a one-mana ping into a repeatable life-loss engine aimed past the body entirely. The subtler line lets their own deck supply the damage: an opposing creature that attacks into a blocker, or one they pump and swing with, now feeds points back onto its controller every time it takes combat damage, which means the Aura quietly taxes their offense without you spending another card. The cost of the design is that it does nothing until something deals damage; it is inert against a creature that simply sits unblocked, and a sacrifice outlet or a bounce spell unwinds it for almost nothing. What lifts it above a gimmick is the way it reframes damage as a two-way transaction: every point of harm the opponent's creature endures arrives twice, once on the body and once on the player holding it. It is a small, sharp idea about consequence, the kind of conditional black removal-adjacent trick that rewards a player willing to manufacture the damage themselves.
