Lavalgrave, Summoner's Mouth

Lavalgrave, Summoner's Mouth enters the battlefield tapped unless you've created a token or cast two more more creatures this turn.
{1}, {t}: Add {u/b}{u/b}{u/b}. (You may spend {u/b} to pay for costs with {u} or {b} in them.)
{u/b}{u/b}, {t}: Exile two creature cards from your hand. When you do, create a 6/6 Blue and Black Zombie Wurm creature token with Seeker and Trample.