Board Thread:Theories and Speculation/@comment-27082825-20150116155842/@comment-24526205-20150121214241

Iar Sensei wrote: Lukas Pessoa Dantas wrote: The common element between Futton and Yoton is Katon. So who should be neutral is Katon, which does not happen, since he has relations with Suiton: Suiton -> Katon

In the case of Jinton (Yoton+Jiton), which is Doton his element in common, Doton has no relations with Katon and Futon, being neutral. This neutral nature is what lets you create a Kekkei Tota.

By that logic, Dust Release is the only possible Kekkei Tota. At least in advanced nature format. And what about Katon -> Futon?

Only the common element must be neutral.