his Zanpakuto is Named Zankushi, while in his Normal Soul Reaper form it is just a katana but when he enters His shikai by saying it's name it becomes A metallic dark red.in this state it can add a extra bladed part on top of the bladed part, that damages&Cuts souls. When he enters his final release aka as a Bankai he becomes faster,the bladed part Now Permanently Cuts,burns the soul on contact