It could be really exciting. Picture Naruto's ninjutsu skills combined with the superpowers of the Justice League members. For example, Naruto's shadow clone jutsu could be used in a really creative way during a battle against a common enemy that the Justice League and Naruto face. Maybe he could create clones to confuse villains like Lex Luthor while Superman uses his heat vision to take them down.
In a Naruto in Justice League fanfiction scenario, Naruto would have a lot to offer. He has a vast amount of chakra which could be used for various purposes like powering up the League's technology or creating barriers. His relationship with his teammates in Naruto like Sasuke and Sakura could be paralleled with the relationships in the Justice League. Naruto might have some initial cultural clashes with the League members as he comes from a different world, but over time, he would learn to adapt and they would learn from his unique skills and way of thinking. His Sage Mode would give him an edge in battles, allowing him to sense danger more acutely and react faster.
Well, it could be about Naruto, with his godlike powers, joining the Justice League in their battles. Maybe he'd use his shadow clone jutsu to confuse the villains they face, like Lex Luthor or Darkseid. His Rasengan could be a powerful weapon against their enemies. It would be an exciting mix of the Naruto universe's ninjutsu and the superpowers of the Justice League members.
The crossover would likely involve a lot of cultural clashes too. Naruto comes from a world of ninjas and feudal - like structures, while the Justice League is from a more modern, superhero - dominated world. This could lead to some comical moments, like Naruto trying to figure out how to use a cell phone or the JL members being confused by Naruto's headband. But when it comes to the Juubi, they'd have to put aside their differences. The Juubi's power might be so great that it could potentially destroy both universes. So Naruto and the Justice League would need to combine their powers, with Naruto using his chakra - based attacks and the JL members using their superpowers like Superman's heat vision, Green Lantern's constructs, etc., to take on this ultimate threat.
The Juubi could be the main villain or a major threat that brings Naruto and the Justice League together. Its massive power would be a huge concern for both parties.
It could have Naruto characters in the Justice League universe. Maybe Naruto uses his shadow clone jutsu to confuse the villains that the Justice League is facing. And Superman might be intrigued by Naruto's chakra powers.
Well, it could be really cool. Maybe Naruto and his friends could team up with the Justice League to fight a common enemy. For example, they might face a powerful villain who has the ability to control both chakra and some kind of super - power from the DC universe. Naruto could use his Rasengan while Superman uses his heat vision in a joint attack.
One idea could be that Tsunade is brought to the Justice League's universe through some sort of magical portal mishap. She could use her medical ninjutsu skills to help treat injured Justice League members, like when Superman gets hurt by a kryptonite - based weapon. Her tough - as - nails attitude would also make for some interesting interactions with Batman, who might be intrigued by her no - nonsense approach.
The crossover could work if there was a common goal. For instance, a powerful and ancient evil that threatens both universes. The Shinju could be the key to stopping this evil. The Justice League, with their different powers like Wonder Woman's combat skills and Aquaman's control over the sea, could bring a different perspective and set of abilities. Naruto and his friends, with their ninja training and knowledge of chakra, could also contribute. They could learn from each other. For example, Naruto might be amazed by the Justice League's technology and the League could be intrigued by the concept of chakra.
Well, a really cool crossover idea could be Fem Naruto using her chakra control skills to help Aquaman communicate better with his sea creatures. She could learn from him about the underwater world and in return, teach him some of her ninja stealth techniques. Also, Fem Naruto could work with The Flash. She might use her teleportation - like abilities (like when she uses her flying raijin) to keep up with The Flash and together they could stop a time - traveling villain.