Cain, The Fallen Angel

+8: Cain, and all of your creatures gain +x/+x and loyalty where x is the number of white monsters on the battlefield
+6: Cain, and all Abyssal creatures and spells you control gain +x/+x and loyalty where x is the number of angels on the battlefield
-20: You gain an Emblem with: "Creatures get +20/+20 with lifelink and deathtouch. Put 20 loyalty counters on each other planewalkers you control."