Wasp, Shrinking Savior

The clever part is the loophole in the reward clause. Most attack-triggered debuffs cap out at neutering a single blocker, but this one shrinks power without touching toughness, then reaches for a payoff that lives in a corner of the rules almost nothing ever visits: creatures whose power is actually below zero. A 2-power blocker hit for -3/-0 does not just get worse at combat, it crosses into negative territory, and negative-power creatures are a legal, checkable game state that virtually no card cares about. Leaving toughness untouched is what keeps the trigger from being pure removal: you are not killing the target, you are pushing it under a threshold and cashing in. Because the count sweeps every creature with sub-zero power on the battlefield, not just the one it targeted, the draw wants a board already leaning downward: your own small attackers, an anthem that swings power the wrong way, other effects stacking negative modifiers onto the same bodies in a single turn. The -3/-0 lasts only until your next turn, so nothing accumulates across turns; each attack starts the tally fresh, which is why the payoff has to come from breadth in one combat rather than from grinding over several. What turns an overlooked corner case (the game tracking negative power at all) into the entire reason to attack is this: the fragile 1/3 flyer is priced to be a repeatable trigger, not a threat.