Chogt the Custodian

Trample, haste
Sacrifice X Treasures: Chogt the Custodian gets
+X/+X until end of turn.
1/1 creatures you control get +X/+X, where X
equals Chogt the Custodian's power.
"He's raised generations of goblins to reach their
potential. It's usually crime, but still..."
— Beezneez the Thief