brachy

(As a Monster enters, choose an opponent to control it. You and others can attack it. When its defeated, exile it, then its owner casts it transformed.) Whenever a creature attacks you, a planeswalker you control or a battle you control put a blast counter on that creature. Creatures with blast counters have “Whenever this creature is dealt damage it is dealt X additional damage where X is the number of blast counters on it, then remove a blast counter.”