Lucifer, The Fallen

+8: Lucifer gets loyalty equal to every white and green monster on the battlefield. Destroy target creature.
+6: Lucifer summons Hell's Gate when a white angel planeswalker enters the battlefield
-20: You get an emblem with: "Creatures get +20/+20 and gain Trample and Haste. Put lifepoints equal to Lucifer's loyalty halfed in your lifepoints."