User blog comment:FairyRaven/Fairy Tail Chapter 470: Hybrid Theory, Review and Commentary/@comment-24319911-20160125160428

about Dragon Slayer maybe let's do like in Polish wiki? http://pl.fairytail.wikia.com/wiki/Magia_Zab%C3%B3jcy_Smok%C3%B3w First Generation, Second Generation, Third Generation, Hybrid Theory (as next Generation, and new magic, page on wiki) and Ultimate Generation (Acnologia). Also I think that Rogue Cheney (Future) also uses Hybrid Theory. :)