Y'know, that helps, that really does, because I was unfocused, and Iwa having Ainu links is a good thought. as for shamans....

well that just screams "animal users and summoners galore". and like remember Jashin? imagine that, but with gods that aren't evil (Jashin literally means "Evil God"). so you have both Ainu worshippers and shinto worshippers of various kami and kamuy, like say.... people who focus on Amaterasu worship getting something involving the sun. would fit in with what I have planned for Amatsu-Mikaboshi and shikigamis.

probably gonna have to make an Iwa 2.0 of that.... however the explosion corps is canon and the kekkei touta experiments is something to keep.