Eldrazatog

Sacrifice an Eldrazi creature: Eldrazatog gets
+2/+2 until end of turn. If the sacrificed
creature's power was 3 or greater, Eldrazatog
gets +X/+X until end of turn instead, where X
is the sacrificed creature's power.
As long as Eldrazatog has power 10 or greater, it
has annihilator 4.
The true ceaseless hunger.