Massacre Girl, Known Killer

Wither has always been a curiosity: a keyword that trades ordinary combat damage for a nastier kind of combat math, dealing its damage as -1/-1 counters rather than resetting at end of turn. On a single creature it is a minor upgrade. As a team-wide anthem, it reshapes the whole board into an attrition engine, because every blocker your opponent commits comes back shrunken, and every point of combat damage sticks. That is the first half of the machine. The second half is what makes the design cohere: any opposing creature that dies with toughness below 1 replaces itself with a card. The two clauses are engineered as a closed loop. A -1/-1 counter that drops a creature to zero toughness technically kills it via state-based action while its toughness sits below 1, which is exactly the window the draw clause is watching for. Chip a two-toughness creature down over two turns and it dies into a card; gang-block it and it dies into a card; point a wither-touched pinger at it and it dies into a card. Menace on the 4/4 body keeps the clock honest while the counters accumulate. The strategic axis is not raw removal but grind: you are not trying to kill things cleanly, you are trying to make every trade lopsided and turn each shrunk-to-death opponent's creature into fuel for the next one.