Enchanted Nightmare

Indestructible, Lifelink
As long as your life total is more than your
starting total, Enchanted Nightmare is not a
creature.
Whenever you draw a card, if Enchanted
Nightmare is not a creature, you gain 2 life.
If Enchanted Nightmare is a creature, each
opponent loses 2 life.
Pay 20 life, {t}, draw cards equal to your life total.