Executor, Condemned Warrior

Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

Whenever Executor blocks or becomes blocked, clash with an opponent. If you win, put a charge counter on this creature. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)

Aspect of the Crucible - Remove three charge counters from Executor: Transform this creature.