Omnath, Locus Absolute

You may cast Omnath, Locus of the Beyond
from exile.
{t}: You may play lands from your
graveyard until end of turn.
{r}{r}{g}{g}{w}{w}{u}{u}{b}{b}:
Exile Omnath, Locus of the Beyond.
While Omnath, Locus of the Beyond
is exiled, you may sacrifice lands you
control. If you do, gain {r}{g}{w}{u}{b}{c}.