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In Naruto, when does Kakashi first use his Mangekyou Sharingan? Because as far
as I know, he and Tobi both awaken their Mangekyou Sharingan when Kakashi saw
Rin and Obito get killed, but he never uses it in the series until Shippuden.


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2013-02-28T01:52:37.567
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naruto
When does Kakashi first use his Mangekyou Sharingan?


He needed more chakra control and his stamina is sub-par. That timeskip made
everyone get better so that's most likely the reason. Plus, he is a non-Uchiha
and that's why he can barely handle it. Maybe he first used his Mangekyou
Sharingan during his fight with Deidara.


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2013-02-28T01:58:38.887
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Kakashi's first known use of the Mangekyo Sharigan was against Deidara.
However, I think your question really is why did he not use it earlier. There
could be a number of reasons why he did not use it or was not shown using it
earlier.

Kakashi awakened the Mangekyo Sharingan when Rin was killed. He thus failed to
keep his promise to Obito. Hence, this was a emotionally painful moment for
him, tied to both Rin and Obito. Maybe he did not want to use it since to
avoid revisiting those emotions.

As mentioned in lexter's answer, another reason is that being a non-Uchiha, he
simply did not have enough stamina to use it effectively in battle. Even after
timeskip, he could only use it twice in a day, and had to take rest for a week
or so after he used it. Before timeskip, he was in charge of genin-level
students, and he couldn't risk getting knocked out and put his students in
danger.

Also, before the timeskip, he simply did not get to fight villains against
whom he was forced to use it. He only fought Zabuza and Haku during the Land
of Waves arc, and unnamed shinobi from Sand Village and Sound Village during
the Invasion of Konoha arc. If Orochimaru were to fight him, Kakashi would
probably be pushed to using it, but Orochimaru fought with the Third Hokage
instead.

Losing to Uchiha Itachi easily may have compelled Kakashi to consider using
it, due to the usual shounen/Naruto logic of "If I want to protect my nakama,
I have to get stronger."

There could also be a couple of author issues why Kakashi couldn't be shown
using it earlier. Sasuke was a protagonist at the time, and his main aim in
life was to kill Itachi. Therefore, it was necessary to introduce Itachi as a
superpowerful villian. Ensuring that Mangekyo Sharingan is first mentioned
when Itachi is introduced would maximize the audience's perception of how
strong and evil Itachi is.

The other reason is it was not in the author's plan that Kakashi had already
awakened the Mangekyo Sharingan when the series started, and planned to offer
an alternate explanation for how he awakened it during the timeskip period.
However, as he started addressing the hanging threads while winding up the
story, he decided to shoehorn it into Obito's backstory.


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2013-02-28T04:54:19.203
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My friend just discovered this in the anime (first season, episode 6, at about
6:35) which I think supports the other explanations. Kakashi is about to use
it when he is caught in Zabuza's water prison jutsu. You can see it in this
image. This would indicate that he is ready to use it in a near death
situation.

[![enter image description
here](https://i.stack.imgur.com/WSZBZ.png)](https://i.stack.imgur.com/WSZBZ.png)


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2016-08-21T20:44:49.073
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In kakashi's fight with deidara (episode 29) he references using it before so
I think it's safe to assume he has at least practiced the mongekyou sharingan
before this fight


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2016-10-24T15:19:19.173
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I think the only real reason here is **retcon**. The Sharingan history is one
of the most retconed plots in the Narutoverse and the Kakashi-Rin-Obito
relationship is up there too. If what is being suggested by these answers and
comments is true, then we have to ignore the fact that Kishimoto admited not
yet having a design for the Mangekyou Sharingan for the scenes that show
Itachi using it on Sasuke without the design we now know. Because of that, we
can infere that at the time kakashi was fighting Zabuza, him having the
Mangekyou too was unthinkable. Not to mention that when he truly first used it
against Deidara, he spent a good hour "working" on his new Sharingan (see
image below), so even at the point it still wasn't defined that he had
awakened it in Rin's death.

[![Kakashi preparing his
mangekyou](https://i.stack.imgur.com/uah79.png)](https://i.stack.imgur.com/uah79.png)

Now, if we MUST make it work for the sake of the Narutoverse, even then we
can't presume that those were his intentions when fighting Zabuza, simply
because there was no point in using his Kamui in that specific situation.

About his ability with it, yeah, he probably did use it before his fight with
Deidara simply because he knew what his eye would do. Since he's not an
Uchiha, he had no way of knowing the details of the Mangekyou's power (other
then watching Itachi, which was not helpful since their eyes didn't have the
same jutsu) without testing on a tree, or a rock. He did faint afterwards, but
it wasn't after a single use, he spent a lot of time trying to sever Deidara's
arm and even "Kamui'd" his Jibaku Bunshin (Suicide Bombing Clone) entire
explosion away.


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He awakened when he killed rin, but he learned about the existence of the
mangekyou in the first fight with Itachi, i think kakashi maybe have trained
using this fight as "inspiration"


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