Curse of Petroleum

Unstoppable Apocalypse (This card cannot be countered or destroyed except by itself)
This card gains a different affect each of your turns
Turn 1: All Islands are tapped and cannot be untapped until this card leaves the field
Turn 2: Gain 3 4/4 Fiend Token Creatures
Turn 3: Search your library and hand for Cthulhu and summon it for free. This card is exiled.