User blog comment:IamJakuhoRaikoben/Chapter 455: Magnolia's Defensive Battle, Review./@comment-5303512-20151005145108

I also keep having this thought in my head that Wahl Icht will have morality manipulation magic that will cause a person's darkside to separate from their lightside. Just like Trigon from Teen Titans or Maijin Buu from DBZ. Considering his epithet, personality and name definition.

This also relates as to how E.N.D. will be resurrected, maybe Natsu's darkside is so heavily influenced by his demon origins that he will seek out the Book of E.N.D. and regain his powers and demon form.

Right?