Alucard

+2: Destroy Target Creature you Control, then put a number of Loyalty Counters on Alucard equal to its toughness
0: Alucard become a X/X Black White Vampire Knight with Deathtouch and Indestruclible, X is equal to loyalty counters, Prevent all damage to Alucard
-15: You gain an Emblem "at the beginning of your upkeep, you may exile target nonland permanent, you gain life for equal to converted cost