Falerus, Vengeance Seeker

+1: Create a 1/1 blue bird creature token with flying and place a +1/+1 or -1/-1 token on a creature.
-3: Sacrifice any number of creatures you control. Then destroy creatures equal to the number of creatures sacrificed.
-9: You gain an emblem "At the beginning of your turn, you gain life equal to the total power of creatures you control"