What could be an interesting plot for a Spiderman and Avengers crossover fanfic?

One possible plot could be that a new supervillain emerges who has the ability to manipulate time and space. This villain starts causing chaos in both Gotham and New York. Spiderman and Batman initially work separately to figure out what's going on. But as the situation worsens, they cross paths. Spiderman's agility and sense of humor contrast with Batman's brooding and strategic nature. They could learn from each other's fighting styles and eventually team up to defeat the villain.

A cool plot could be that the symbiote from Spiderman's world somehow gets linked to a Hive entity in the Destiny universe. This causes chaos as the combined powers create a super - powerful and evil being. Spiderman has to team up with a Warlock to find a way to separate the two and stop this new threat. The Warlock uses their knowledge of the Darkness and the Light, while Spiderman uses his physical abilities.

A possible plot could involve a mad scientist who combines the DNA of a worm with some sort of mutagen that gives it super - human like intelligence and abilities. This new 'worm - creature' starts causing chaos in the city. Spiderman, being the friendly neighborhood hero, investigates. He discovers that the worm - creature is not entirely evil but just confused. So, he tries to help it while also protecting the city from its accidental destruction.

Well, perhaps in this fanfic, the Avengers misunderstand Spiderman's actions. Maybe they think he's been compromised by some powerful enemy force, so they decide to kidnap him to figure out what's really going on. They could take him to a secret location, like an abandoned SHIELD base. Then Spiderman has to convince them that he's on their side while also dealing with his own feelings of betrayal.

One possible plot could be that a powerful villain from another dimension threatens both the DC and Marvel universes. Superman and the Avengers have to put aside their differences and combine their powers. For example, Superman's super strength and flight could be paired with Thor's godly abilities and Captain America's leadership. They could start off not trusting each other, but as the battle progresses, they learn to work together and defeat the villain in an epic showdown.

One possible plot could be that the Avengers are somehow transported to the Naruto universe. They team up with Naruto and his friends to fight a common enemy like Kaguya who has somehow obtained the Infinity Stones. The Avengers' powers and technology would be a huge shock to the Naruto world, and they'd have to learn to combine their skills to succeed.

One idea could be that the X - Men and Spiderman have to team up to stop a powerful mutant - human hybrid villain created by Oscorp. The X - Men bring their diverse powers and experience in dealing with mutants, while Spiderman adds his acrobatic skills and street - level intelligence. They start off distrusting each other, especially with some of the X - Men being wary of Spiderman as a non - mutant, but as they face challenges together, they learn to work as a team.

Well, a cool plot could involve Spider - Man's identity being revealed to the public and the Avengers having to protect him from various villains who see this as an opportunity to take him out. Or perhaps a situation where an old enemy of the Avengers teams up with one of Spider - Man's foes, forcing the two groups to work together more closely than ever. Spider - Man could also introduce some new tech or fighting styles to the Avengers during their joint adventures.

One interesting plot could be Spider - Man having to prove himself to the Avengers. Maybe he starts as an outsider, but through his unique skills like web - slinging and his spider - sense, he helps the Avengers in a mission that they initially thought was impossible. For example, infiltrating a high - security enemy base that is full of high - tech traps.

One possible plot could be that Naruto is somehow transported to the Marvel universe. The Avengers initially mistake him for a threat. But Naruto, being Naruto, tries to explain his situation. He then shows them his ninja skills like shadow clones and Rasengan. Together, they could face a common enemy like Thanos, who has acquired some sort of ninja - like powers. Naruto's ability to never give up and his strong will could inspire the Avengers, and his combat skills could be a great addition to their team in the fight.