Ergrak, The World Eater

0: To cast This spell, pay X life. Ergrak, The World Eater enters the battlefield with half that many Loyalty counters.
+1: Destroy target land. Ergrak, The World Eater gains indestructible until the end of turn.
-20: Destroy all lands on the battlefield. All players cast spells for free for the rest of the game. No more lands can be played.