Bane of the Polis

Flying
{6}{b}{r}: Monstrosity 3. (If this creature isn't monstrous, put 3 +1/+1 counters on it and it becomes monstrous.)
When Bane of the Polis becomes monstrous, it gains "At the beginning of your upkeep, destroy target non-basic land. If you can't, Bane of the Polis deals 2 damage to each creature target player controls."