Sierra, Lost Angel

+1: Put a Holy counter on target creature. Creatures with Holy counters are angels in addition to their other types, and have Flying and Vigilance.
+1: Put a Spite counter on target creature and tap it. Creatures with Spite counters on them don't untap during their controller's untap step.
-7: Destroy all creatures with Spite counters on them. All creatures with Holy counters on them get +4/+4 until end of turn.