User blog comment:IamJakuhoRaikoben/Chapter 484: The Monstrous Six, Review./@comment-2214433-20160509190007/@comment-2214433-20160510070839

Rai, I think it was said when Gildarts returned before Edolas arc and told Natsu about how Acnologia rekt him.

Zonia, our article says so at least /o/