In a Naruto Rinnegan Marvel fanfic, the plot could revolve around a group of Marvel characters trying to understand and control the power of the Rinnegan. They might find a way to combine it with their own technology or powers. For instance, Doctor Strange could study the Rinnegan's space - time manipulation abilities and try to incorporate it into his own magic. This would lead to all sorts of interesting adventures and conflicts.
The cultural clash is also quite interesting. Naruto comes from a feudal Japanese - inspired world with ninjas, while Captain Marvel is from a more modern, science - fiction based universe in the Marvel Comics. In fanfics, seeing how the characters from these two very different worlds interact, whether it's in terms of language, values or social norms, adds a lot of depth.
Well, a great crossover idea in naruto and marvel fanfic is the Avengers team coming to the Naruto world. Imagine Iron Man trying to figure out the chakra system while Captain America is learning ninja techniques. This would bring a whole new dynamic to both universes as they interact and learn from each other.
I'm not sure specifically as I haven't read it. But it might be a fan - created story that combines Naruto, who is from the Naruto series, with the concept of mutants from the Marvel universe.
The plot of a 'naruto is the batman marvel fanfic' could start with Naruto being mysteriously drawn into the Marvel universe. Since he's now in the role of Batman, he'd need to adapt his ninja skills to the urban environment of the Marvel world. He could use his speed and agility to move around like Batman does in Gotham. His Rasengan could be modified into a new kind of weapon against Marvel villains. There could be a backstory about how the universes collided or some powerful magic/technology that brought him there. He might also have to deal with the different moral and ethical codes in the Marvel universe compared to his own, all while trying to keep the peace and fight evil in his new 'Batman - like' role.
One possible plot could be that Naruto is somehow transported to the Marvel universe. He teams up with the Avengers during a maelstrom (a chaotic and powerful event). Naruto's unique ninja skills, like his shadow clones and rasengan, could be used in creative ways to combat the threats in the Marvel world. For example, his clones could help in crowd control during a big battle against an army of villains while the Avengers focus on the main villain. His rasengan might be able to disrupt some powerful energy sources in the Marvel universe that the Avengers have trouble dealing with.
Obviously Naruto himself would be one of the main characters. He would bring his unique ninja abilities and his determined personality. In the Marvel side, Iron Man could be a main character. His intelligence and high - tech gadgets would contrast well with Naruto's more traditional ninja skills. Also, Captain America with his leadership and strong moral compass could play a major role, especially in bringing the two different groups (Naruto and the Marvel heroes) together during the maelstrom chaos.
He could be a new type of hero. Maybe he starts as an unknown entity and quickly rises in power and reputation. His unique jutsu like the Sharingan (if he somehow acquired it in the crossover) would make him stand out. He could join forces with the Avengers and teach them new combat techniques based on his ninja skills.
Well, Naruto's Sage Mode gives him enhanced physical abilities and the ability to sense chakra. In a Marvel fanfic, if combined with Marvel powers, it could be really interesting. For example, if he had some sort of connection with the Hulk's gamma - based powers, his Sage - enhanced strength could reach new levels. Maybe his chakra sensing could be used to detect other types of energy in the Marvel universe, like the Cosmic Energy.
He could be a hero, of course. Naruto has a strong sense of justice, so in a Marvel fanfic, he'd likely be fighting against the bad guys. Maybe he'd team up with the Avengers to take on Thanos - like threats.