User blog comment:Godisme/Deicide 7/@comment-1393830-20100527161248

Wolfwood- I saw a theory that perhaps Isshin's zanpakuto has the ability to mimic other zanpakutos. I dont like that though as I think it would be kind of cheap. I saw another theory that says that Ichigo is merely a substitute shinigami and so is borrowing his dads zanpakuto powers but substitute shingami is just a title and he is still a shinigami so I highly doubt this theory. I kind of like the theory of zangetsu belonging to father and son. Zangetsu may be a lineage sword passed from father to son for generations and I really like that