One way it could work is if Jack Sparrow somehow ends up at Hogwarts. Maybe he's chasing a magical treasure that has been hidden there. His pirate ways would clash with the strict Hogwarts rules, and Harry Potter and his friends could either befriend him or be suspicious of him. Another possibility is that Harry Potter, being a fan of Jack Sparrow, tries to model some of his actions after the pirate, much to the dismay of his teachers.
The plot could be centered around a magical artifact that has the power to transport people between different fictional worlds. Jack Sparrow discovers this artifact and accidentally gets transported to the world of Harry Potter. Harry Potter, having read about pirates in books, is excited to meet Jack Sparrow. Together, they embark on a journey to find a way to send Jack Sparrow back to his world. But they also have to deal with dark wizards who want to use the artifact for their own evil purposes. This would create a plot that combines the swashbuckling adventures of Jack Sparrow with the magic and mystery of the Harry Potter world.
One way it could work is if there was a magical portal that connected the wizarding world to Spider - Man's universe. Harry could accidentally stumble through it and then get involved in Spider - Man's battles, using his magic to help out.
One way could be that Godzilla somehow appears in the wizarding world. Maybe a magical experiment goes wrong and transports Godzilla there. Then the wizards and witches have to figure out how to stop it using magic.
One way could be that Harry is somehow transformed into a RoboCop - like figure in the wizarding world. He could use his new robotic powers along with his magic to fight against dark wizards. For example, his robotic enhancements could give him super strength to physically combat opponents, while his magic could be used for more complex spells.
Well, the story might have Harry being raised in a very different environment. Jack Sparrow is not one to follow the rules, so Harry would be exposed to a lot of spontaneity. He may not be as uptight about the pure - blood and half - blood concepts in the wizarding world. His dueling skills could be a mix of wizard magic and Jack's swashbuckling fighting style. He could use his wand like a sword at times, and his spells might have a nautical theme, like casting 'Aqua Eructo' with a flourish that Jack would be proud of.
Well, it's not a traditional or common concept. Fanfiction usually involves playing within the boundaries of a single fictional universe or at least related ones. Harry Potter has its own set of rules, characters, and storylines, and the same goes for Jack Sparrow's world. However, in the realm of fan creativity, anything can be possible. Maybe someone could write a story where Harry Potter is a big fan of the tales of Jack Sparrow and tries to incorporate some pirate - like adventures into his magical quests.
In fanfiction, anything can be possible. But in the official Harry Potter and Pirates of the Caribbean universes, there's no such connection. Fanfiction often takes characters from different stories and creates unique and sometimes out - of - the - box relationships. However, this is purely a creative and fictional idea within the realm of fan - created stories.
One way it could work is by having Harry Potter be transported to the world of Noctis. He could use his magic skills there and face new challenges that are different from what he's used to in Hogwarts. For example, the magic in Noctis' world might be more elemental - based, and Harry has to adapt to use his wand magic in that context.
One way could be to give Harry the Geass power. So, he could use it to control the actions of Death Eaters or Voldemort himself. He might start to make more strategic and calculated moves like Lelouch, using his new power to outwit his enemies. Another aspect could be in the political side. Maybe the wizarding world becomes more like Lelouch's world with different factions vying for power and Harry has to play a political game as well as fight against the dark forces.
The plot could start with Harry having strange dreams about Shinigami. As he investigates, he discovers that there is a hidden portal in Hogwarts that leads to a realm where Shinigami exist. He and his friends enter this realm, and they find out that there is a dark force in the wizarding world that is related to the Shinigami in some way. They then have to work with some friendly Shinigami to stop this dark force. Along the way, they learn about new forms of magic and the true nature of death from the Shinigami.
The plot could start with a spell gone wrong in Hogwarts that somehow transports a group of Transformers to the wizarding world. The wizards are initially scared but soon realize that they need to cooperate with the Transformers to deal with a new dark force that is attracted to the combination of magic and technology. The story could involve battles, magic - tech hybrids, and new friendships between the two groups.