Dagon, Demonic Sultan

Fear; Dagon, Demonic Sultan is indestructible.
Non Merfolk creatures get -1/-1.
Whenever a non merfolk creature an opponent
controlls is destroyed, draw 2 cards.
Whenever an opponent player plays a spell card,
you may pay {b}{b}{1}. If you do, that player loses
2 life, you gain 2 life.