Gruukil, Gruul Incarnate

Flying, trample, bloodthirst 2
As long as you control a nonlegendary creature that had trample before it was cast, creatures you control have haste.
Eminence -- As long as Gruukil is in the command zone or on the battlefield, red creatures you control have trample, green creatures you control have flying, red and green creatures you control have bloodthirst 2, and creatures you control with the Gruul signet on them cost {1}{r/g} less to cast.