Didn't see if someone mentioned this but I think that the second sharingan which obito used for izanagi in the fight aganist konan is the one eye that madara transplanted in his eye-socket after giving his rinnegan to nagato. Just wanted to share the thought. What you thing about it?
but if you reread the manga you will see (in the fight between pain and kakashi and then naruto) that pain was able to use something like genjutsu so kakashi wasn't able to place his chidori attack in the right direction or then he pierced through narutos hands with the metal stab and then he...
I haven't seen anybody saying this and since I would hear some opinions I would like you guys to say your opinions ad arguments...so since itachi isn't under controll of kabuto and an edo tensei zombi, who were immortal and regenerate themselves and so on he should be immortal and live forever...