A possible crossover in this fanfiction could be the fight against the Death Eaters and the Green Lantern's villains. The Death Eaters' dark magic could be a new kind of threat that the Green Lanterns have to face. And perhaps the Green Lanterns' energy constructs could be used to protect Hogwarts from Voldemort's attacks. Harry Potter could learn about the Green Lantern's willpower and use it to strengthen his own magic, while the Green Lanterns could learn about the complex magic system in the Harry Potter world.
Definitely not. Harry Potter and Green Lantern come from two entirely different fictional universes. Harry Potter is set in a magical world filled with witches, wizards, and Hogwarts School of Witchcraft and Wizardry. Green Lantern, on the other hand, is part of the DC Comics universe, dealing with intergalactic threats and powered by the Green Lantern rings. There's no way Harry Potter could be a Green Lantern fanfiction as they are so disparate in nature.
There could be a story where Harry is transported to the Green Lantern universe. He then has to learn the ways of the Green Lanterns while also trying to find a way back home. Maybe he uses his quick - thinking and magical knowledge to impress the Green Lanterns and earn their respect. For example, he could use spells to enhance the power of the ring in unique ways.
In a crossover fanfiction, Voldemort could get his hands on a Green Lantern ring. He would try to bend its power to his will, but the ring, which is powered by willpower and good intentions, resists him. This could lead to an internal struggle within Voldemort as he tries to overcome the ring's positive influence. Meanwhile, the Order of the Phoenix teams up with the Green Lantern Corps to stop Voldemort before he figures out how to corrupt the ring completely and use it to take over both the wizarding world and potentially the universe.
One interesting 'Harry Potter lantern fanfiction' could be about how a magical lantern plays a crucial role in a secret Hogwarts mission. Maybe it's a lantern that reveals hidden passages or has the power to protect the wearer from dark magic during a dangerous adventure.
There might be a 'Harry Potter Lantern Fanfiction' where the Lantern is a key to unlocking a hidden chamber in Hogwarts that was unknown even to Dumbledore. The characters would have to face new challenges and enemies within this chamber. It could be filled with ancient magic that interacts with the Lantern in strange ways. For example, the light from the Lantern could reveal hidden spells on the walls of the chamber.
Well, he might use the power of the Green Lantern ring to fight Voldemort in a whole new way. His magical abilities combined with the ring's power could make him an even more formidable opponent. He could create constructs out of magic and the ring's energy, like a giant magic - infused sword to take on Death Eaters.
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.