Maklerya, Dusken Blade

Unscorched (This creature can't be dealt noncombat damage.)
Enmity 3 (As this creature enters the battlefield, choose a player. Whenever this creature attacks that player, it gets +3/+3 until end of turn.)
Whenever Maklerya, Dusken Blade becomes blocked by one or more creatures controlled by the player she has enmity with, put a -1/-1 counter on each of those creatures.