Bucky, the Winter Soldier

Reach, Menace

Whenever Bucky, the Winter Soldier attacks, search your library for a soldier creature card and put it into your hand.

Whenever you cast a soldier creature card from your hand, put a ultimate counter on Bucky, the Winter Soldier. If Bucky, the Winter Soldier has 5 or more ultimate counters, remove him from the battlefield and return him transformed.