Asterios, God of Schemes

Indestructible
As long as your devotion to blue, black, and red
is less than nine, Asterios isn't a creature.
On your end step, exile a nonland card in your graveyard with a plan counter on it. Then, for
each card exiled with a plan counter on it, you
may pay {2}. Return each card for which you paid
mana this way to your hand.