Well, a crossover might involve the characters. Picture Hermione Granger finding herself in the midst of the nightmarish scenarios of Corpse Party. Her intelligence would surely be put to the test as she tries to figure out a way to escape using both her magical knowledge and her wits. And perhaps some of the dark magic from Corpse Party could be compared or contrasted with the dark arts in Harry Potter, like how different they are in nature and how they affect the characters who encounter them.
In some 'Harry Potter and Corpse Party fanfiction', there could be a situation where the Hogwarts houses play a role. Say, the Gryffindors might show their courage in the face of the terrifying events in Corpse Party. The Hufflepuffs could use their loyalty to stay together and support each other. Ravenclaws might try to use their knowledge to understand the strange and deadly rules of the Corpse Party world, and Slytherins could use their cunning to survive. It would be really fascinating to see how the different traits of each house interact with the horror elements of Corpse Party.
One interesting crossover could be the use of Hogwarts' magical elements in the haunted setting of Corpse Party. For example, a spell from Harry Potter might be used to fend off the malevolent spirits in the Corpse Party world.
Well, the magic system in Harry Potter is based on a magical world that has co - existed with the non - magical world for a long time. It has a Ministry of Magic to regulate it, and there are specific schools like Hogwarts to teach magic. In Corpse Party, the 'magic' if we can call it that, is more of a dark and mysterious force that causes harm and chaos. In fanfiction that combines the two, the magic from Harry Potter may be seen as a way to combat or at least understand the dark and often illogical magic in Corpse Party. For example, a simple spell like Lumos from Harry Potter might be used in an attempt to illuminate the dark and terrifying corridors of the Corpse Party setting, but it might not work as expected because the rules of the two 'magical' worlds are so different.
Well, in some fanfiction, we might see Anna and Kristoff visiting Hogwarts. They could be amazed by the moving staircases and magical creatures. In reverse, Harry, Ron and Hermione could end up in Arendelle. Hermione might be intrigued by the way Elsa controls her ice powers and try to find a scientific or magical explanation for it. Also, the Dementors from Harry Potter could be compared to the dark forces in Frozen 2, like the mist that Elsa has to face.
One interesting crossover could be the use of magic in the Avengers world. For example, Hermione could use her knowledge of spells to help the Avengers solve a problem that technology couldn't. Maybe she could use a spell to break through an impenetrable force field created by an enemy. Another aspect could be the Avengers characters learning magic. Tony Stark might be fascinated by the concept of magic and try to incorporate it into his technology. Or Thor could share his knowledge of Asgardian magic with the Hogwarts students.
One interesting crossover could be a scenario where Hermione uses her magic to help Elsa control her powers better. Maybe she creates a spell that can soothe Elsa when she's about to lose control.
In some fanfiction, Maleficent might team up with a dark wizard from the Harry Potter universe. They could combine their powers to try and take over both the wizarding world and the fairy - tale land where Maleficent comes from. This would create a complex power struggle with the heroes having to find new ways to combat them.
One interesting crossover could be the characters from Harry Potter visiting Narnia. For example, Harry, Ron, and Hermione might find themselves in Narnia through some magical accident. They could then interact with the talking animals and magical beings there, like how they interact with the magical creatures in their own wizarding world. Maybe they would help the Narnians in a battle, using their unique Hogwarts - taught magic.
One interesting crossover could be the use of spells. For example, a Charmed one might learn a spell from the Harry Potter world like the Patronus charm. It could be used in a new and different way in the Charmed universe, perhaps to fight a new type of demon that is vulnerable to positive magic like a Patronus.
One interesting crossover could be Superman visiting Hogwarts. He might be amazed by the magic there. Maybe he tries to learn some spells, but his superpowers interfere. For example, when he tries to use a levitation charm, his super strength makes the object fly out of control.
One interesting crossover could be a scenario where Harry Potter and his friends encounter Janemba's chaotic powers in the wizarding world. Maybe Janemba's otherworldly abilities disrupt the magic there, and Harry has to use his knowledge of both magic and the strange new power he's facing to set things right. For example, he might combine spells with his natural courage to combat Janemba's minions.
Another idea in pokemon and harry potter fanfiction could be the sorting of Pokemon into Hogwarts houses. Some Pokemon, like Bulbasaur, with its calm and studious nature, might be sorted into Ravenclaw. While Pokemon like Charizard, which are brave and strong - willed, could end up in Gryffindor. This concept can lead to really creative stories about how Pokemon interact within the Hogwarts house system.