Hirihsjak

Old God Aura (Every creature on the battlefield is granted -0/-1 on Hirihsjak's owner's upkeep step. Also deal 2 damage to Hirihsjak's owner)
Destroy all lands on the battlefield until Hirihsjak is removed from the battlefield. If it is removed from the battlefield, return all lands to their owner.
You may exile any number of Black Skull creature tokens. For each one exiled this way, heal their owner 2 Life.