User blog comment:IamJakuhoRaikoben/Chapter 334: Sin and Sacrifice, Review./@comment-69.121.99.96-20130614014251/@comment-1359322-20130614021344

Well the Lightning Flame mode is like a cheat to begin with and we still haven't add the Dragon Force with it and now Natsu already gained the "Hell's Flame", damn his getting more powerful.

@Rai, well i did make a theory of Zeref spiriting Gray's body/corpse and resurrect him into a villain and used as a villain for an arc.