One possible plot could be a threat that is too big for either the Justice League or the X - Men to handle alone. So they have to team up. Maybe a powerful cosmic entity is threatening to destroy both the mutant and non - mutant worlds. The heroes from both groups would need to combine their powers and strategies. For example, Superman's strength and flight could be paired with Wolverine's combat skills and healing factor. Batman's intellect could work with Professor X's telepathy to come up with a battle plan.
Superman and Cyclops. Superman is the ultimate symbol of hope and power in the DC universe, while Cyclops is a strong and strategic leader among the X - Men. Their different approaches to leadership and power could create an interesting dynamic.
Another storyline might involve a character from the X - Men, say Wolverine, getting transported to the Justice League's universe and having to adapt. He could bring his no - nonsense attitude and combat skills, and in the process, learn about the different threats and heroes in that universe. For example, he might have a run - in with Batman and learn about his detective skills.
Logan (Wolverine) and Batman is also a popular pairing in fanfiction. The two are both tough, no - nonsense characters. A fanfiction could show them teaming up, with Wolverine's brute force and regenerative powers complementing Batman's intellect and gadgets. They could also have some great banter as they solve a mystery or take on a powerful foe.
Some members might be shocked. Wonder Woman, for instance, who respects Batman's skills and tenacity, would likely be very disappointed. She might try to persuade him to stay, emphasizing the importance of his presence in the team. Superman, on the other hand, might initially be understanding, as he knows Batman has his own way of doing things. But he would also be concerned about the power vacuum that Batman's departure would create. Aquaman might be more indifferent, thinking that Batman was always an outsider to some extent, with his focus mainly on land - based issues.
In fanfics involving Catwoman in the Justice League, she often brings a unique dynamic. Her morally grey nature contrasts with the more traditional heroes. For example, she might be involved in a heist that has unexpected consequences for the Justice League. Her skills as a thief and her acrobatic abilities make her a formidable character in these fictional stories.
Darkseid would be a great main villain. His thirst for power and domination could extend to Trunks' universe as well. He could see Trunks' advanced technology and power as a threat and want to take it for himself. His Omega Beams could be a real challenge for Trunks and the Justice League to counter.
Well, a frequent theme is the exploration of power dynamics. Naruto is quite powerful in his own universe, and the Justice League members are also very strong. In these fanfics, there's often a comparison and combination of their powers. Also, cultural differences play a role. The Japanese - inspired Naruto world and the more Western - influenced Justice League world have different values and ways of life, and these are often explored in the context of the harem relationships. For example, how Naruto's sense of loyalty and friendship might be perceived by the Justice League characters and vice versa.
One popular 'Justice League x Reader Fanfic' story could be the ones where the reader is a new superhero joining the Justice League. It often involves the reader going through training with the likes of Superman or Wonder Woman, and having to prove their worth to the team. There are also fics where the reader has a special power that the Justice League needs to help save the world.
One possible plot could be that the Omnitrix gets malfunctioned and starts sending out energy signals that attract the attention of the Justice League. Ben, in his various alien forms, has to work with the League to figure out what's wrong with the Omnitrix and stop an evil force that is also drawn to the energy. For example, Vilgax could team up with some of the League's villains like Lex Luthor to take advantage of the situation.