Kerrell the Avenger

+4: Kerrell deals 5 damage to any target. You gain 5 life.
+2: Create a 4/4 white angel token with flying. It gains hexproof and indestructible until end of turn.
-X: X target creatures get +2/+2 and gain flying, indestructible, lifelink, trample, and vigilance until your next turn.