User blog comment:FairyRaven/Fairy Tail Chapter 319: The White Knight, Review and Commentary/@comment-6152051-20130216062142/@comment-6152051-20130218043824

Well, since the two of the main dragons are having dual elements already, it would be unfair if Wendy wont be able to achieve it. And given that Wendy's element is the sky, it would be synonymous to clean, and incorporating it with Cobra's would be impossible, since he's in prison, and his element is Poison - it wont be a match.

Oh well, la la la la ~ What I am saying..