What are some interesting ideas for an X - Men and Avengers crossover fanfiction?

A cool plot could be that a new, extremely powerful mutant emerges who has the ability to control all forms of energy. This mutant's powers are so great that they start to disrupt the fabric of reality. The Avengers and the X - Men both realize that this mutant needs to be controlled or taught to manage their powers. However, different factions within both groups have different ideas on how to approach the situation. Some want to be more forceful, while others believe in a more diplomatic approach. This leads to internal conflicts within the combined group as they also battle external threats caused by the mutant's out - of - control powers.

One idea could be a battle against a common enemy that is too powerful for either the Avengers or the X - Men alone. For example, a powerful alien race that wants to enslave mutants and humans alike. The two groups would have to combine their unique powers and skills to defeat this enemy. Another plot could involve a misunderstanding between the two teams that leads to a brief skirmish before they realize they are on the same side. For instance, the Avengers might mistake the X - Men's actions as a threat to humanity when in fact they are trying to protect a mutant from a rogue government agency.

One idea could be that a powerful cosmic entity threatens both the Avengers' world and the X - Men's. So they have to combine their forces. For example, Iron Man could work with Beast to develop new tech to counter the entity's energy. Another could be a mutant - hating villain who uses some of the Avengers' tech to target mutants, forcing the two groups to team up to stop him.

One idea could be that a powerful mutant villain emerges who is able to manipulate time. This causes disruptions in both the X - Men and Avengers' universes. The X - Men, with their knowledge of mutants, and the Avengers, with their vast resources and superpowers, have to team up to stop this villain. They start off distrusting each other, especially because the Avengers are sometimes seen as anti - mutant by some in the X - Men world. But as they face challenges together, they learn to work as one.

One idea could be that Tony Stark tries to modernize Dunder Mifflin's technology. He'd be frustrated by the old - fashioned ways of the office. Another could be Thor working as a temp at the office and constantly getting into comical misunderstandings because of his Asgardian ways. Maybe Hulk could be the office's security guard, scaring off any unwanted visitors in a very Hulk - like manner.

You could do a crossover with the Inhumans. The X Men and Inhumans have some similarities in terms of having special abilities. In the fanfiction, there could be a misunderstanding at first between the two groups. For example, Beast could be fascinated by the Inhuman biology while some of the more hot - headed X Men like Gambit might be a bit more aggressive in their initial interactions. Then they would have to work together to face a threat like an alien invasion.

Another idea is a crossover with the Star Trek universe. The X - Men could find themselves on a Starfleet ship. They might have to deal with the differences in cultures and technologies while also trying to stop Apocalypse from spreading his chaos across the galaxy.

A great 'X Men Crossover Fanfic' idea could involve crossing over with the Buffy the Vampire Slayer universe. The X - Men could help Buffy and her gang fight some really powerful vampires that are immune to normal slayer weapons. Another idea is an X - Men and Doctor Who crossover. The Doctor could land in the X - Men's world and they could team up to stop some time - traveling villain who is trying to change mutant history. There could also be a crossover with the Ghostbusters. The X - Men and the Ghostbusters could work together to stop some mutant - created ghosts that are causing chaos in New York.

Well, perhaps there could be a situation where the Ministry of Magic tries to regulate mutant powers as they do with magic. Some mutants might resist this and seek refuge at Xavier's School for Gifted Youngsters. In the crossover, Professor McGonagall and Professor X could have an interesting exchange of teaching methods. McGonagall's strict yet nurturing style compared to Professor X's more accepting and guiding style. Also, imagine a character like Rogue being at Hogwarts. She could accidentally absorb the powers of a wizard, creating all sorts of chaos and a new mystery to solve.

One idea could be that Superman is somehow transported to the X - Men's universe. He teams up with the X - Men to fight a common enemy like a powerful mutant who has the ability to nullify Superman's powers on a large scale. They have to figure out how to combine their skills and powers to overcome this threat.