Board Thread:Wiki Discussions/@comment-3238846-20140422105553/@comment-1512913-20140424154736

We don't know how Kekkei Tota works, but all Dust techniques so far have required both hands indeed. The balls are a tailed beast skill. Also there's no evidence that the balls in their original state are of any nature at all, chakra doesn't just happen to be a nature without first having been transformed.