User blog comment:Selim 009/Seven Dragons Vs. Seven Dragon Slayers/@comment-15382134-20130428203745/@comment-7418318-20130429103813

But does Laxus really "become" lightning? Or does he just surround himself with an aura of lightning, move beyond the speed that the eye can catch and that which we see is actually a trail he leaves behind?

It's all happening so fast that we can't really tell, while Juvia becoming water leaves no room for doubt.