User blog comment:FairyRaven/Fairy Tail Chapter 329: Seven Dragons, Review and Commentary/@comment-4829046-20130430111358/@comment-4829046-20130430114249

Well at least Mashima has the excuse that the reason Cobra didn't use his KotSS powers is cause Natsu specifically said that only DS power will work. But wait, that reminds me, Laxus utilizes lightning magic separate from his DS abilities, so that would mean he can't use his signature moves. He might pull out a new DS technique. YAY!