Alduin, the World Eater

: As long as Alduin, the World Eater has 7 or more loyalty, he is a legendary 7/7 black and white dragon with flying and menace.
+2: Summon a 4/3 black and white dragon creature token with flying.
-3: Destroy target creature and summon a X/X black and white dragon creature token with flying, where X is the power of the target creature.