then how could kabuto ress the madara?he need the spirit of the guy to do that
so in order for that madara must be dead to be ressed
WHO THE HELL IS TOBI?U_U
There are many fine theories as to who tobi is. Tobi can not be madara anymore since madara is confirmed to be dead.
Tobi also confirmed that the name "Tobi" is a made up name.
Theories of Tobi's Identity:
1. Zetsu-like creation
*Madara is like a scientist. He takes DNA's from the first hokage and tries to combine it with his body/powers. He gives Nagato Rinnegan. Since Madara was wounded deeply by the first hokage, he knew his time was very close and that he wouldn't live very long so he created "Tobi" and gave "Nagato" the rinnegan since Nagato is from the Uzumaki clan. His chakra is strong enough to be able to handle the rinnegan. Madara had a plan that one day his creation "Tobi" would get hold of "Nagato" and when the day comes, Nagato would revive Madara.
2. Tobi is izuna, shisui etc etc
* I don't exactly know why there are theories like this
3. Tobi is Obito
* Madara wanted a uchiha strong enough to be able to awaken the MS. So far only six uchihas in more than 100 years were able to awaken the MS. Awaking MS is very rare among the Uchiha and only those truly powerful were able to awaken the MS. Even though, Obito in kakashi gaiden was presented to the viewers as a weak uchiha. Some people overlook the fact that Obito awaken his two tomoes at the age of 12-13 almost at the same age of sasuke and itachi. Someone like madara wasn't going to overlook someone like Obito who knows at what age Obito was able to awaken his one tomoe sharingan. Obito who was considered dead by both the Uchiha and konoha village was perfect for madara's project since madara didn't want anyone to know he was alive. Since madara had the rinnegan, he resurrected Obito. If you want more just tell me on private message