User blog comment:FairyRaven/Fairy Tail Chapter 470: Hybrid Theory, Review and Commentary/@comment-1359322-20160125125836/@comment-24102956-20160125163315

Maybe, God Serena would have killed Seven Dragons with relative ease when Future Rogue brought them to the present time via Eclipse Gate if he had been there. Though dunno how would the 1st, 2nd, and 3rd Generation DS react to him if they get to see the former First Wizard Saint can do.

And I don't think Natsu won't take kindly to him hurting Atlas Flame, friend of Igneel and his uncle too. Even how God Serena showed disdain for Dragons which also refer to Igneel's legacy too.