Board Thread:Naruto Discussions/@comment-26107879-20180726043358/@comment-6036561-20180726150343

As everyone already stated, having seen Shinki use Lightning Release does not mean that it is his only - or main - element.

Take Kakashi, for example. We have seen him using Earth and Water Release 30 chapters before he used the Raikiri, and we know that his elemental affinity is Lightning. Same goes for Sasuke, having Lightning affinity but using only Fire Release until he learned Chidori, or Asuma having Wind affinity but - as far as I remember - never using a single Wind Release jutsu.

On the other hand, we have Kurotsuchi who has Lava Release (known to be Earth + Fire ) but never using a Fire Release jutsu.