Last chapter Madara was talking about a person that had plans for his revieval which didnt quite go right. Kabuto steps in and tells him he is the one controlling these summons and that he was this person's assitant.
Both madara and kabuto are talking about tobi I guess so this just adds to the mystery of tobi.
So I was right with the mutation.
I am an artist, and my medium is death. I'm about to create my masterpiece :s
Fan of the Rasengan Doujutsu theory, even though it's dead. Although, he does have the special Uzumaki clan blood.
My take on this is that Tobi is in fact Izuna but I still think by the time Madara fought Hashirama he was still deceased as it was stated in the data book. Madara gains rinnegan, what do you think he would do first ? Yup, revives Izuna .. but he revives him in the same state he died, without sharingan. This could be the reason behind Tobis statements about him being weak and "injured". Plus, it would also explain why Tobi has such vast collection of sharingans and the reason he was quiet for nearly 100 years since Madaras death. However, its a mystery to me how Madara died, but he left Zetsu and Hashiramas cells for Izuna, and he followed in his brothers footsteps.
Naruto, Bleach, One Piece, Fairy Tail, Claymore, Ao No Exorcist, Katekyo Hitman Reborn, Gamaran, Toriko, Vinland Saga, Gantz, Wolf Guy, Deadman Wonderland, Vagabond, Blade of The Immortal, Battle Royale, Zettman