User blog comment:LegerPrime/The Only 2 who stand a chance (if there is one)/@comment-1153699-20160206185639

Acnologia would destroy either of them the same way he did God Serena.

Natsu (without DFK mode or DF) is not stronger than Serena. And even if he was, it wouldn't matter. Acnologia would go right through him as well. If one blitz wouldn't put him down (it would), Acnologia could just blitz him again.