Here are some of my studes on tobi.
1. His sharingan eye is obitos other eye. There is no other uchiha whose eye is undiscovered. Also tobi can manipulate space(he vanishes anytime) and kakashi can also manipulate space so their eyes come from the same origin ie. Obito.
2. His body is of izuna. Im not saying izuna is alive. Maybe it is a strong genjutsu casted by madara on him when madara was dying. Also madara might have given the rinnegan to izuna. But the "zombie" izuna could not revive madara as he himself was dead. Years later when obito dies izuna steals one eye of obito and passes the rinnegan to nagato. Now why im only sure about izuna and not any other uchiha is bcoz he gained full access to izanagi along with his bro only.
so tobi might have developed the izanagi in obitos eye through izunas skills. This explains why he says im no one / you "can" call me madara.
So tobi is just a genjutsu casted on dead izuna with obitos sharingan and madaras rinnegan.
1. His sharingan eye is obitos other eye. There is no other uchiha whose eye is undiscovered. Also tobi can manipulate space(he vanishes anytime) and kakashi can also manipulate space so their eyes come from the same origin ie. Obito.
2. His body is of izuna. Im not saying izuna is alive. Maybe it is a strong genjutsu casted by madara on him when madara was dying. Also madara might have given the rinnegan to izuna. But the "zombie" izuna could not revive madara as he himself was dead. Years later when obito dies izuna steals one eye of obito and passes the rinnegan to nagato. Now why im only sure about izuna and not any other uchiha is bcoz he gained full access to izanagi along with his bro only.
so tobi might have developed the izanagi in obitos eye through izunas skills. This explains why he says im no one / you "can" call me madara.
So tobi is just a genjutsu casted on dead izuna with obitos sharingan and madaras rinnegan.