Dead Weight

A flat -2/-2 stapled onto a creature as a permanent rather than spent as a one-shot, and that permanence is the whole bargain. Instant-speed shrink effects like Disfigure or Tragic Slip share the same one-mana price, but they fire once and resolve; the aura framing buys something the instants cannot, which is duration. Because the -2/-2 sticks to the board, it does not just trade with a two-toughness creature, it answers that slot in the matchup, and it quietly rewires anything bigger: a 4/4 pinned to a 2/2 stays pinned, leaving later removal or a single combat trick to finish a job that is now half done. It also lingers as a permanent in its own right, feeding decks that count enchantments or want a cheap recursion target. The catch is the one every aura carries: a -2/-2 that fails to kill is a card committed to a creature the opponent still controls, and a bounce or a blink strips the effect clean off, refunding nothing. That is the trade for losing instant speed. The instants answer a combat trick on the stack; this answers the creature before combat ever happens, and keeps answering it. Against the small early bodies it was built to erase, the math is brutally efficient. Against anything its two points cannot outright kill, it stops being a clean answer and becomes a tempo wager you are still partly paying for several turns later.