Corvas, The Dread Reaper

Indestructible, Double Strike
As long as your devotion to Blue,Black,And Green
is less than 8, then Corvas, The Dread Reaper isn't
a Creature
At the beginning of your upkeep, you may return target card from your graveyard to your hand.
you may cast that card this turn
if you don't then exile it