Eien : my zanpaktou

(the outer form of my zanpaktou dosen't change)
sealed: its just a practice sword
shikai: it is just like any regular katana
bankai: same as shikai and it amps up my ghost flash step by 100,000,000,000,000%, also i can charge my spiritual pressure into my zanpaktou and use it into a single blast or slash and is realeased by the phrase: satsu