Bowser, Star Eater

+1: Destroy target artifact or enchantment. Then put X loyalty counters on Bowser, Star Eater, where X is the destroyed card's converted mana cost +1
+1: Bowser, Star Eater does 2 damage to target creature or player. Proliferate. If Bowser, Star Eater has 10 or more loyalty counters, transform him.
-16: Destroy all lands target player controls. Bowser, Star Eater does 3 damage to that player for each land destroyed in this way.