Fanfiction ideas combining Harry Potter and the Lich King
Perhaps a wizard from Hogwarts gets transported to the world of the Lich King. He has to use his magic in new and unexpected ways to survive among the undead hordes. For example, he could use transfiguration spells to change the appearance of the undead, causing confusion among them.
In a more complex plot, the Lich King's influence could start seeping into the dreams of Hogwarts students. A group of students, including Harry Potter, have to journey into the realm of dreams to fight off this influence and discover a connection between the two worlds that was hidden long ago.
Fanfic ideas combining Naruto and the Lich King
One idea could be that Naruto is somehow transported to the world of the Lich King. He might use his ninja skills, like shadow clones, to fight against the undead minions of the Lich King. His chakra could be seen as a strange and new form of energy in that world.
Fanfic ideas combining Harry Potter and King Arthur
One idea could be a fanfic where Harry Potter discovers a hidden portal in Hogwarts that leads him to the time of King Arthur. He could use his magic skills to assist Arthur in battles, perhaps using spells to defeat the enemies that Arthur's knights struggle with. For example, Harry could use the Stunning Spell to incapacitate a large group of invaders.
Fanfic ideas combining Harry Potter and The Scorpion King
One idea could be a crossover where Harry Potter and his friends accidentally end up in the world of The Scorpion King. They could use their magic to help the Scorpion King in his battles against his enemies. Maybe Harry could use his invisibility cloak to spy on the enemy's plans and then use spells like Stupefy to stun them during the fight.
Fanfiction ideas combining Harry Potter and Fluttershy
One idea could be that Fluttershy somehow gets transported into the Harry Potter world. Maybe she arrives at Hogwarts as a new kind of magical creature that the students have never seen before. Her gentle nature might initially cause confusion among the more rowdy students, but she could gradually make friends with the likes of Luna Lovegood, who would be intrigued by her uniqueness.
Fanfiction Ideas Combining Harry Potter and Magneto
Another concept could be that Harry Potter discovers he has a connection to Magneto's mutant powers. This might happen during a strange encounter with a dark magic object that unlocks a latent power within him. He then has to learn how to control these new abilities while also dealing with the threats in his own wizarding world, and he might seek out Magneto for guidance in a secret meeting across the boundaries of their two worlds.
Fanfiction ideas combining Harry Potter and Kakashi
One idea could be a crossover where Kakashi is summoned to the Harry Potter world by a dark magic spell gone wrong. He then uses his ninja skills and Sharingan to navigate the wizarding world, perhaps even teaching some Defense Against the Dark Arts classes with his unique combat knowledge.
Fanfiction ideas combining Harry Potter and Megatron
Maybe in a fanfiction, Harry Potter and his friends accidentally stumble upon a hidden Cybertronian relic. This relic has some sort of power that attracts Megatron. Harry and his friends then have to defend the relic from Megatron while also trying to figure out what it does and how to use it to their advantage in the fight against Voldemort.
Fanfiction ideas combining Harry Potter and Whitebeard
One idea could be a crossover where Harry Potter accidentally travels to the One Piece world and meets Whitebeard. He could learn about their different forms of magic and power, and together they face a new threat that combines the dark magic from his world and the powerful pirates in the One Piece world.
Fanfiction ideas combining Harry Potter and Ranma 1/2
One idea could be a crossover where Harry Potter accidentally ends up in the world of Ranma 1/2. Maybe he's on a magical experiment gone wrong and lands in Nerima. He could use his magic to help Ranma deal with his curse, like creating a spell to keep him from changing into a girl when splashed with cold water.
Fanfiction Ideas Combining Harry Potter and Android 18
Another concept could be a crossover where the magic in the Harry Potter universe has an unexpected effect on Android 18. For example, it could start to interact with her android systems in strange ways, giving her new powers or abilities that are a combination of magic and her android technology. This would lead to a whole new set of adventures as she tries to figure out what's happening to her.