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Obito as Tony explains Nagato betrayed him and used up his one shot at Rinne
rebirth to review people of hidden leaf village (I am assuming using his
Rinnegan eyes).

How can Obito perform Rinne rebirth if he got Nagato's eyes that he stole from
his corpse after battling Konan (Aren't those Rinnegan eyes exhausted?)


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How can Obito use Rinne rebirth using Nagato's Rinnegan eyes?


Actually, Nagato's Rinnegan weren't his to begin with. These eyes were
originally Madara Uchiha's (or even more accurately, they were originally
Madara's younger brother's eyes, though it was Madara who awakened the
Rinnegan). Madara's Rinnegan were transplanted into Nagato when he was very
young.

Now, if the Rinnegan have ever been show to be able to be exhausted (perhaps
in _Boruto_ ), I am not aware of it. In the first place, Madara first obtained
the Eternal Mangekyō Sharingan, which negates much of the Mangekyō Sharingan's
toll, and is supposedly inexhaustible (hence the name "eternal"). One would
assume Rinnegan has a similar lifespan, given it is a derivation. Regarding
the Rinnegan, the [Fandom wiki](https://naruto.fandom.com/wiki/Rinnegan) also
says this:

> However, Madara's eyes did not become Rinnegan until decades later, when his
> natural lifespan was nearing its end; this also restored his right eye's
> vision, which had been lost from his earlier use of Izanagi.

(Fandom cites _Naruto_ chapter 681, pages 13-14)

So it seems that even an ability that _can_ exhaust the Eternal Mangekyō
Sharingan, _does not_ exhaust the Rinnegan. Or at least, Madara got a one time
fix when his Sharingan evolved. Though it has also been suggested on the
answers for [this
question](https://anime.stackexchange.com/questions/34139/what-happens-when-
you-perform-izanagi-izanami-with-rinnegan) that his eye recovering had nothing
to do with evolving, and was merely a result of the regenerative effects of
Hashirama's cells which he incorporated into his body. Danzo's usage of
Izanagi might provide further info for whether this is the case. If it is so,
then this paragraph would be discounted as useful, as Nagato did not have
Hashirama's cells.

Or perhaps it cannot be discounted, as both Obito and Madara do have these
cells, so it might explain why the Rinnegan was not exhausted. As soon as they
plugged it in, the cells would do their work and undo much of the damage
Nagato did.

Where does this leave us? We know Nagato did not exhaust the Rinnegan, despite
extensive use of its powers. His own body, however, did suffer quite greatly.
Similarly, Obito did not exhaust the Rinnegan when he used it's powers.


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