First off, each MS has a distinct power.
For example, Kakashi's is the Kamui ( send other objects into other dimension), Itachi's is easy genjutsu and Madara's is space time teleportation ( different from Kamui since he teleports himself over space/time ). From Itachi, we know that both MS of a person has same power. If Kakashi took his Sharingan from Obito, then the power of the other MS of Obito is also Kamui. But since each MS can only use one specialty, Tobi can't be Obito.
( Please note; Amaterasu, Tsukuyomi are not what I'm talking about so dont consider them.):kakashi:
:naruto::sasuke:
For example, Kakashi's is the Kamui ( send other objects into other dimension), Itachi's is easy genjutsu and Madara's is space time teleportation ( different from Kamui since he teleports himself over space/time ). From Itachi, we know that both MS of a person has same power. If Kakashi took his Sharingan from Obito, then the power of the other MS of Obito is also Kamui. But since each MS can only use one specialty, Tobi can't be Obito.
( Please note; Amaterasu, Tsukuyomi are not what I'm talking about so dont consider them.):kakashi:
