User blog comment:Miskos3/Fairy Tail 520: Dragon or Demon, Review/@comment-5303512-20170204123939

Well, not a good chapter, yet not at all unpleasant. Lots of things recton like END was what keeping Natsu alive and gave him his demonic powers that can beat Zeref, and that made Zeref's point about him dying will cause Natsu to die too. And that the dragon seed could so easily by removed just by declaring yourself as human. A little weird that Irene could not do it.

This is the definite example of an Asspull that people have been misusing with Erza all this time.

Hopefully all this is not over and done with, maybe the demonic power goes back into the book and the Etherious is reborn there since it does not have a host. And until Zeref is truly dead, there is always the probability of seeing it again.

Now Natsu is at a major disadvantage, he neither had the ability to turn into a dragon nor the demon power to kill Zeref, he lost his only beneficial power ups to win.

But since no one returned to their original spots before U1, and Acnologia is still far off, then there is still the possibility that he will not be the final boss of this arc and will get an entire arc for himself, so there is still hope for more arcs on the way since Hiro never declared Alvarez to be the final arc.

But I will takes solace in the fact that despite all this, END is in fact confirmed to be an (it) and not Natsu Dragneel himself. And at least we got a brief look at the END form that he had.

Overall 5/10