Quote Originally Posted by FireEmblem View Post
Oro probably wants the same thing almost every villain seems to want. To be just like Rikudou Sennin. If he could achieve that, the secrets of ninjutsu would be revealed to him, if all ninjutsu came from Rikudou as its been stated. Edo Tensei is probably just a variation of the rinnegans ability to control life and death.

If that's not what he wanted, he wouldn't need the Sharingan. Orochimaru was already immortal when he was first introduced.
Yea, you all are probably right.