Yami Yami no Mi

Eat {b}{b}
Eater Creature gains +6/-3 and Deathtouch. If Eater Creature becomes the target of a Blue spell, sacrifice it.
Eater Creature gains "{8}: Exile all other permanents. Return the to the battlefield at the beginning of your next turn," and "{t}: Deal damage to target player equal to the number of exiled permanents."
"Now let the whole world fall into darkness..."