User blog comment:IamJakuhoRaikoben/Chapter 482: Vigor, Review./@comment-24734624-20160418212746/@comment-46.198.238.140-20160420144545

Also it can be that in her previous fight the source for Wendy's dragonforce was external(ethernano produced by Face whitch was massive. It's like wondering why Natsu's GMG LFD mode is weaker than the one in Tenrou Island where he consumed Laxus far superior magic in quantity.