Carneage, the Eternal Death

Flying, Trample, Deathtouch
Creature you control have Flying, Trample, Deathtouch.
{3}{b}{g}: When creatures you control attack they get +6/+6 until end of turn and they get, "When this creature deals combat damage to a player or planeswalker double the damage.
{x}{b}{g}{t} Create X 6/6 Dragon creature tokens with Flying, Trample and Deathtouch.