User blog comment:IamJakuhoRaikoben/Chapter 503: The Last Sight Seen, Review./@comment-84.197.239.101-20160926192137/@comment-84.197.239.101-20160926205953

Yeah, DiMaria did state only E.N.D. would be capable of moving within the effects of her time stopping. Although Zeref himself may be capable of it as well, judging from his appearance before Natsu during the Tartaros Arc.

There was also the time he was unaffected by Bluenote's Gravity.

I don't think that it's just sheer force that allows him to ignore those effects, since there are guys stronger than Natsu like Gildarts or those with more Magic power like Irene and August.

One would think that a mage like August would have the magic power to shield himself from Dimaria's timestopping or know a spell that can help him overcome it. But he wasn't mentioned by her, yet she knows about E.N.D.'s supposed ability.

Invel also wanted to make sure E.N.D. was destroyed and he didn't seem to have blind faith in Zeref's immortality and magic abilities should the two ever face off.

Maybe Zeref informed the Alvarez forces that E.N.D. may appear at some point during the battle and that he would be their biggest threat. It's unlikely that all the spriggan shields know that Natsu = E.N.D. but they may at least be aware of E.N.D.'s special Curse power.