Nitara, Flantred Angel

: At the end of your upkeep, you may sacrifice a creature you control, if you do, Nitara becomes a 4/4 red Angel creature until end of turn.
+2: Destroy target creature or planeswalker, activate this ability only as a sorcery.
-11: All creatures you control gain haste, deathtouch, lifelink, prowess, hexproof, and flying until end of turn.