WAAAGH! Scrap Of Da Gods

As WAAAGH! Scrap Of Da Gods enters the battlefield, choose Gork or Mork.
•Gork — At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card.
•Mork — Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.