Selesnyk, Selesnya Incarnate

Flying, trample, convoke
Every other creature you cast has convoke.
Eminence -- As long as Selesnyk is in the command zone or on the battlefield, white creatures you control have trample, green creatures you control have flying, white and green creatures you control have lifelink, and creatures you control with the Selesnya signet on them cost {1}{g/w} less to cast.