Arras, Titan of Wild's Rising

When Arras enters the battlefield, sacrifice it unless
it escaped.
Whenever Arras enters the battlefield or attacks,
create a 1/1 green Elemental creature token with
vigilance and a 1/1 white Elemental creature token
with lifelink.

Escape-{g}{g}{w}{w}, Exile five other cards from your
graveyard. (You may cast this card from your
graveyard for its escape cost.)