User blog comment:B214/Chapter 503: The Last Sight Seen/@comment-5303512-20160926122648/@comment-5303512-20160926140539

I said I am usually right, doesn't mean I am always right, besides with God Serena and Gildarts, I sorta knew it wasn't going to last long since GS wasn't at full power, and I am cool with that, as long as he wasn't one shotted at the start and managed to injure or ruffle up Gildarts I am good with that.

With Fairy Heart, it could have gone either way if Gray was too late or not. Would it have been more interesting if FH was extracted, yes, but this way the story can go one for a while longer.

With Neinhart, I honestly thought that their physical strength were tied with their magic as well, but apparently that is not the case, should have known that since Daybreak arc. But if Neinhart is down, that's fine, since he managed to defeat one of the strongest wizards in Fairy Tail, and that is an accomplishable feat.

I go by this philosophy for every prediction and hope I make about the future in the immortal words of Nick Fury "You hope for the best, and make due with what you get."

Besides that, with what happened with Natsu very Zeref, at the beginning, Natsu was going to defeat Zeref simply to save the world from darkness, but after hearing about his demon side, he simply attacked not out of his principles, but out of fear and rejection of the truth. But after being rational about it, he would never do anything that would cause his friends to be sad, that would go against his very beliefs. Natsu simply didn't want to believe it and disregarded it, even if he did, he would also help Happy to find a way to defeat Zeref that would not involve Natsu dying.

But after END's awakening, he all of a sudden became so wrathful, hateful and violent out of no where. Zeref's demons are made to kill him out of devotion, but with END it appears that it is more than that, hatred for his creator? That would also be the reason how Curses were created too.