[quote=@Solaris]
[@DarkwolfX37] It isn't legitimate immortality though, if I were to compare him to anyone, it would be the Wolverine without his claws and metal skeleton.  Also, like everybody else, he can't use his powers if he doesn't do his sacrifice.  
[/quote]

Hmm... Well, at the very least, if everyone else is okay with it like AcerRo said, I think he should still lose memories from head injuries that would cause memory loss in another person. Unless the healing is done like Orihime's or by rewinding time, the neuronetworks wouldn't heal into the exact way they were. [url=https://www.youtube.com/watch?v=CUT6nET1yjo]Source[/url].