What could be the plot of a Harry Potter and Superman crossover fanfiction?

Well, one possible plot could be that Superman somehow gets transported to the wizarding world of Harry Potter. Maybe he's chasing a powerful magical artifact that has been stolen and ends up in Hogwarts. There, he could meet Harry and his friends. They might initially be suspicious of him, but then realize his good intentions when he helps them fight off some dark wizards who are after the same artifact. The combination of Superman's superpowers and the magic of the wizarding world would make for some really exciting battle scenes.

One possible plot could be that Superman is somehow transported to the wizarding world. He's lost his powers there, and Harry Potter has to help him get back to his own world while also protecting him from the various magical threats in the wizarding world. Along the way, Harry could teach Superman some basic magic to help him defend himself, and Superman could use his strength and heroism in a different way within the magical setting.

Well, one possibility could be that they team up to fight a common enemy from another dimension. Maybe a powerful villain who can manipulate time and space, which would be a great threat to both Superman's Metropolis and Flash's Central City. This would force them to combine their unique powers. Superman's super strength and flight, along with Flash's super speed, could create some really cool battle scenes.

One possible plot could be that Superman is somehow transported to the Marvel universe where the Avengers operate. He initially clashes with them due to misunderstandings. For example, his super strength might be seen as a threat. But then they realize they can team up to fight a common enemy, like a powerful alien or a super - villain who has the ability to manipulate time. They combine Superman's powers such as heat vision and flight with the Avengers' diverse skills like Iron Man's technology and Captain America's leadership to save both universes.

One possible plot could be that Superman is somehow transported to the Marvel universe. He might initially be seen as a threat by the Avengers. But then they realize he's there to help against a common enemy, like a powerful cosmic villain. They would team up, with Superman's super strength and flight abilities complementing the Avengers' various skills.

One possible plot is that a dark magic from the Darksiders universe seeps into the Harry Potter world. Harry and his friends discover that the only way to stop it is to learn some secrets from the Darksiders. So they embark on a journey through both worlds, meeting various characters from each along the way and using a combination of magic and the powers of the Darksiders to combat the threat.

The plot could involve Maleficent's magic interfering with Hogwarts' protective spells. She might be on a quest to find a powerful magical artifact hidden in Hogwarts that she believes will make her even more powerful. Harry and his friends suspect her motives and start to investigate. In the process, they learn about Maleficent's past and find some similarities between her story and their own fight against the dark forces in their world.

Well, it could be that Supergirl lands in the wizarding world somehow. Maybe she's chasing a bad guy who uses magic to escape to Hogwarts. And then she teams up with Harry Potter to fight the bad guy. Harry could teach her about magic while she teaches him about her superpowers.

Well, perhaps the magical creatures from the Harry Potter universe end up in the '300' setting. Dragons could be used by the Spartans to fight their enemies. The centaurs could also join the battle, lending their archery skills. And Harry could learn some combat skills from the Spartans, which he could then use back in the wizarding world to fight Voldemort's Death Eaters.

One possible plot could be that Moana's island is threatened by dark magic from the Harry Potter universe. Harry, Hermione, and Ron could be transported to Moana's world while on a mission to stop the spread of this dark magic. They would team up with Moana to use her knowledge of the ocean and the island's magic, along with their own wizarding skills, to fight off the dark forces. Maybe they'd have to face off against a wizard who has enchanted some of the sea monsters in Moana's world.