One interesting crossover could be Harry Potter characters interacting with Greek gods in a magical tournament. For example, Harry might face off against a demigod in a series of challenges that combine Greek mythology's tasks, like retrieving the Golden Fleece, with Hogwarts - style magic. This would create a really unique and exciting story.
Imagine if the Patronus charm in Harry Potter was related to Greek gods. A character's Patronus could take the form of a Greek god's animal symbol. So, someone with a very brave heart might have a Patronus in the shape of Zeus' eagle. This would add a whole new layer to the concept of the Patronus charm and also create a fascinating connection between the two worlds of Harry Potter and Greek mythology.
One interesting crossover could be a scenario where Harry Potter characters encounter Greek god - given powers. For example, Hermione might be given the wisdom of Athena and use it to solve complex magical problems even faster. Another could be a duel between a powerful wizard from the Harry Potter world and a demigod from the Greek mythology world. It would be a clash of different kinds of magic and strength.
Well, a common thing in Harry Potter Greek Mythology fanfic is the idea of prophecies. In Greek mythology, prophecies often play a huge role, and so do they in Harry Potter. Fanfic writers might combine the two, like having a prophecy that involves both Greek elements and the fate of Hogwarts students. Also, the concept of heroes is important in both. A fanfic could feature a character who is like a Greek hero, with their own 'Odyssey' - like journey through the magical world of Harry Potter, facing challenges inspired by both mythologies.
One interesting story could be where Harry Potter discovers he has some Greek god heritage. Maybe his magical abilities are actually a gift from a Greek god, like Athena. This could lead to him having to learn about both the wizarding world and the world of Greek gods, and how to use powers from both. It would be a really cool mash - up of the two universes.
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.