Insar the Vigilant

+2: Insar the Vigilant becomes a 2/3 black and blue vampire assassin creature with indestructible and menace until end of turn. It loses no loyalty.
-2: Gain control of target creature until end of turn. Sacrifice it at the beginning of your end step.
-8: Destroy all creatures. For each creature destroyed this way, you gain 2 life and draw a card.