como seria el mangekyo sharingan eterno de itachi

It could be an original character. Maybe a young ninja from a small, forgotten clan who discovers they have the Mangekyo Sharingan. This character would have to learn about their power, its limits, and how to use it in a world full of powerful shinobi.

One common theme is power struggle. When a Harry Potter character gets the Eternal Mangekyo Sharingan, they have to deal with the new power and how it affects their relationships. Another theme is identity. They might question who they are now that they have this new ability from a different universe. For example, a Gryffindor might struggle with the more 'ninja - like' aspects of the Sharingan that seem at odds with the Gryffindor values.

Another concept is the character development. The presence of the Eternal Mangekyo Sharingan often brings a deeper level of conflict and growth for the characters. They might have to struggle with the power it bestows, such as the risk of going blind or the moral implications of using its more sinister abilities.

Another plot could revolve around a character who has the Mangekyo Sharingan but is trying to hide it from both their allies and enemies. They fear the power it holds and the attention it might draw. As the story progresses, they are forced to use it in a crucial battle, and their friends then have to deal with the revelation and the potential danger it brings to the group.

One possible plotline could be Naruto unlocking the Mangekyo Sharingan through some strange and unforeseen means, perhaps a powerful jutsu backfires and gives him this new power. Then he has to struggle with controlling it while his friends are both amazed and a bit worried about this new development in him.

For Kakashi, if he were to gain an enhanced Mangekyo Sharingan in this crossover, his relationship with his students would shift. He would be even more of a figure of power and mystery to them. His interactions with Naruto might become more about teaching him how to counter the Sharingan's powers, as Naruto would be facing more powerful Sharingan - users. And his relationship with Sasuke could become more strained, as Sasuke might see Kakashi's new power as something he wants to surpass even more urgently.

One interesting plot idea could be a character from the Naruto world obtaining the Mangekyo Sharingan through some strange and unforeseen event. For example, Naruto himself could be exposed to a powerful Uchiha - related jutsu that accidentally gives him the Mangekyo Sharingan. This would completely change his power dynamic and how he approaches battles. He could then have to learn how to control this new power while still maintaining his own ninja way.

Well, I don't have a specific 'Harry Potter Eternal Mangekyo Sharingan' fanfiction to recommend right off the bat. But when you're looking, consider the reviews and ratings of the stories. A highly rated story is more likely to be well - written. In these fanfictions, you might expect to see things like a Harry Potter character training to master the Eternal Mangekyo Sharingan, perhaps with the help of a character who has knowledge of both the wizarding world and the Naruto universe. This could lead to some really interesting character development and plot twists as they navigate two very different power systems.

Sasuke Uchiha is often a central character. Since he already has the Sharingan in the original series, in fanfiction with the Eternal Mangekyo Sharingan, he can be further developed. His journey to master this new level of power and how it affects his relationships, especially with Naruto, can be a major focus.

In some fanfictions, it could be through a special jutsu or ritual. Maybe Itachi, before his death, transferred his Sharingan to Naruto in a unique way, perhaps using a forbidden technique that was known only to a few in the Uchiha clan.