Vlazine, Waker of Corpses

Flying, haste
Groundbreaker ({0}: This creature loses flying until
end of turn and cannot be blocked this turn. Use this ability only once per game)
Whenever Vlazine, Waker of Corpses attacks and
isn't blocked you may pay {x}{b/g} if you do, return
up to X dragon cards from your graveyard to the battlefield. Their Zombies in addition to other
types.