Board Thread:General Discussion/@comment-25436862-20150514195845/@comment-4961229-20150516025248

Thank you, Dedmnwalkn88. You're correct. I did take that into account and the reason I say Darui has the edge in water is because, with his kekkei genkai being composed of lightning and water, he most likely can use water at a higher level than Kakashi, for whom water is simply a secondary element. I could be wrong about that, but that's my take on it.

In any case, even if we assume they're equal in water, Darui's black lightning has such a wide area of effect it gives him an edge should they fight on or near a large body of water.