Banewasp Affliction

This is removal-by-proxy, an Aura that does not kill anything but turns the enchanted creature's eventual death into a payment. The wrinkle lives in the toughness clause: most penalty Auras of this stripe debuff the body or punish attacks, but this one keys off the defensive stat and waits for the inevitable. Strap it to a fat blocker and the controller is now caught between a wall they cannot trade away cheaply and a bleed they cannot stop without bouncing the creature out of the equation. The timing is the elegant part. You do not need to spend a second card to finish the job; you spend it preemptively, then let combat, a chump block, a board wipe, or the opponent's own sacrifice outlet collect the debt. That makes it a sorcery-speed setup with an instant-speed, multi-window payoff, which is an unusual shape for two mana. The cost the design pays for this is obvious: it does nothing the turn it lands, and a savvy opponent can blank it by simply never letting the creature die, or by exiling, returning, or flickering it out of the equation. It is a reactive enchantment that asks you to predict where a creature is headed and tax the trip, a slow drain rather than a clean answer, and that patience is both its discipline and its ceiling.