Eater of All

Exile a creature or artifact card from your
graveyard: Put a +1/+1 counter on Eater of All.
{t}: Surveil 2.
{t}, Exile a noncreature, nonartifact card from
your graveyard: Reveal cards from the top of
your library until you reveal a creature card.
Put all cards revealed this way into your
graveyard. You may cast an instant or sorcery
spell from your hand with mana value less than
the number of cards revealed this way.