Board Thread:General Discussion/@comment-1875854-20150221232630/@comment-4080775-20150227232550

Actually, the manga states that Yin-Yang is almost exclusive to users of the Sages chakra, and all other forms of it are just varying ratios of Yin and Yang. But still, Black Lightning is proof that its somewhat possible to make a new nature. I'm not saying its a nature in itself, but it does change the nature of the lightning slightly. But I still refuse to believe that all elemental natures are composed of varying ratios of Yin and Yang, otherwise, there wouldn't be any elements to begin with. But that's just my 2 cents.