Invocation of Shadow Arms

This technique utilizes of the Yin Release that allows the user to materialize a temporary weapon of their own choosing. This technique, despite its rank, is considered to be a one of the most simple of the Yin Release techniques. Nōsei has shown, like his mother before, him that several different weapons can be "conjured" with this technique. Nōsei in particular appears to favor a variety of different swords for various situations. It appears that weapons summoned by this technique feel lighter to the conjurer, but the reasoning behind this is yet to be fully explored. Because of this, practitioners are able to create weapons with much larger sizes than they would normally be able to wield. It should be noted that larger weapons require a greater amount of chakra to conjure, and that all weapons last roughly one hour before "fading away." Furthermore, weapons that are either destroyed or forcefully dematerialized return a portion of the chakra used to conjure them to the user. Nōsei has demonstrated that this technique can be used to conjure weapons incredibly quickly, and without much warning, making this technique quite dangerous if used appropriately.

While weapons created by this technique are formed out of chakra, they seem to have a similar appearance and texture to brushed black steel. It seems that because of their physical state that such arms are able to have chakra channeled through them for a variety of purposes.