Board Thread:Theories and Speculation/@comment-1512913-20180917223942/@comment-1512913-20180918091910

Hence why I skipped Swift and Dark, they are from a non-canon movie. Steel appears in a novel that is supposedly canon and Crystal seems far too complex to be an original idea in my opinion, so I suspect Kishimoto's involvement in that one.

I don't think you can combine an elemental nature with yin/yang/both. Proof of that is that we have a Lightning Release Genjutsu and it's both Lightning and Yin, not some new combined nature that is a merger of the two.

My 'chart' provides all 10 combinations without any Yin/Yang shenanigans. The other charts don't have all 10 combinations and include too speculative yin/yang combinations.

But it's interesting to see how differently people look at this :) Feel free to theorize.