I take it Nikana Zaws don't really have sheaths to draw the blade from, but when equipping any of the regular skins on it (I barely own any tennogen to test that out with those) it makes it so it doesn't have show a sheath to draw from. As far as I know you can also change sheath colours if you go to attachments on all nikanas, but on zaws while having any skin equipped you can only change that in the primary colour picker, doing so on the attachments picker just changes the attachment itse