User blog comment:FairyRaven/Fairy Tail Chapter 391: Gray vs. Silver, Review and Commentary/@comment-24066070-20140704183210/@comment-24066070-20140706130507

Considering Deliora already stated how he was revived in Hell's Core alongside Silver's corpse, Keith pretty much bashed an open door by stating that Deliora became a Demon Gate. What's next? Will he explain how each and every Demon Gate got their title? Perhaps change the role of narrator from Lucy to Keith.

Deliora may have very well explained all this himself and added that his new power was so great it could serve as a detterent to the other Demons, this could have caused Gray to feel even more powerless.

Considering Deliora is pretty much obsessed with his revenge on everything Ur-related, I doubt his life over the past years was "boring" as he likely amassed the power needed to carry out this revenge + research Ur's relatives and planned out how to make their life a hell. On top of that, he tried to make Gray experience agony and fear by just using words before, so he would certainly not evade an explanation, even if it only served to glorify himself.

Keith and Juvia discussing things that don't even relate to them is nonsense. Period. So have your tea, cookies and laughter while enjoying the pointless, pace-breaking cameo's of Juvia and Keith.