Azan, King of Hearts

+1: Creatures you control gain Hearty until end of turn (They have an additional one toughness for each enemy creature on the battlefield).
0: Until end of turn, Azan becomes a 4/4 Demon Soldier creature with Indestructible. If you paid for him with one white he gains Hearty.
-8: You get an emblem with "All creatures have Hearty. Toughness does not decrease, but increases when enemy creatures enter the battlefield".