Sylvia, Goddess of Heroes

+1: Creatures you control gain your choice of first strike, lifelink, vigilance, or +1/+1 until end of turn.
-2: Put four 1/1 white Hero creature tokens onto the battlefield.
-7: You get an emblem with "At the beginning of combat on your turn, creatures you control gain +2/+2 and double strike until end of turn.