Well, in such a fanfiction, the plot might involve Alucard protecting Harry from the threats that start even before he goes to Hogwarts. Since Alucard is extremely powerful, he could fend off Voldemort's early attempts to harm Harry. And as Harry grows up, Alucard might instill in him a sense of self - reliance that is different from what he would have learned in the Dursley's household. Harry could end up having a more brooding and mysterious personality, influenced by Alucard's presence.
One possible plot could be that Alucard, with his dark and powerful nature, trains Harry in unique ways. Harry might learn combat skills that are a blend of magic and Alucard's vampiric abilities. For example, he could be taught to move with super - speed or have enhanced senses in addition to his magical powers. Alucard could also introduce Harry to a different view of the magical world, one that is more shadowy and filled with secrets not known in the wizarding society Harry was born into.
If raised by Alucard, Harry's character would become more self - assured and perhaps a bit more solitary. Alucard is a lone figure in many ways, and Harry would pick up on that. He would be less reliant on the support of friends like Ron and Hermione. Instead, he might develop his own way of dealing with problems, using a combination of magic and the skills he learned from Alucard. His view of the world would be darker, seeing the underbelly of magic that most wizards choose to ignore.
The plot could start with Harry always feeling different from the other wizards, having some strange instincts. As he uncovers the truth about being Alucard's son, he could be drawn into a world that combines the dark, gothic elements of Alucard's world with the magic of the Harry Potter universe. Maybe there are ancient prophecies related to his dual heritage that he has to fulfill, all while facing the usual enemies from the Potter series, but with a new and more complex set of powers at his disposal.
Maybe Alucard is a time - traveler who accidentally ends up in the era of Harry Potter. He initially has his own agenda but gets involved in the fight against Voldemort. His unique powers, which are very different from the magic in the wizarding world, make him both an asset and a mystery. Harry and his friends are both fascinated and a bit afraid of him. Alucard could also introduce a new type of magic or power that the wizards have never seen before, which could change the balance of power in the war against the Dark Lord.
Alucard could fit as a powerful outsider. His vampiric abilities like super strength, speed, and the ability to turn into mist or a bat would be very different from normal wizard magic. He could be a sort of anti - hero, helping Harry when it suits his own goals. For example, if there was a dark wizard using blood magic in a way that threatened Alucard's existence too.
Well, perhaps Kaguya would use her otherworldly powers to protect Harry from Voldemort. Maybe she'd teach him some unique magic that's different from the wizarding world in Harry Potter. For example, she could introduce him to some ancient spells from her own realm.
Well, one possible plot could be that Magneto, with his strong views on mutants and power, would train Harry to be extremely powerful in magic. Harry might grow up with a more aggressive stance towards those who oppose him, like Voldemort. He could use his magic in ways that are more combat - oriented from a young age.
In a 'Harry Potter raised on Mars' fanfiction, the story could start with a strange magical accident that lands Harry on Mars. There, he is raised by a lone wizard who has been exiled there for some unknown reason. The wizard teaches Harry about magic in the context of the Martian landscape. Harry might develop new spells or ways of using magic that are specific to Mars. For example, he could use the low - gravity to enhance the power of levitation spells. He would also face challenges like the extreme climate and the mystery of the Martian ruins, which could hold some powerful magical secrets related to his past or the future of both Earth and Mars.
In such a fanfiction, perhaps Harry would grow up with a more nurturing and understanding environment. Lupin could teach Harry about the wizarding world in a very different way than the Dursleys. He'd likely introduce Harry to magic earlier and help him better understand his parents' legacy.
In such a fanfiction, perhaps Harry would grow up with a different set of values. Charlus Potter might instill in him a more traditional pure - blood wizarding family's values. He could be trained in advanced magic from a very young age, having access to family secrets and spells that he didn't get in the original story. This could make Harry a more powerful and confident wizard earlier on, and his relationships with other characters like Ron and Hermione might develop differently as his upbringing shapes his personality in a new way.
In a 'Harry Potter raised by Merlin' fanfiction, the plot could be really interesting. Merlin, being an extremely powerful and knowledgeable wizard, would raise Harry in a secluded place perhaps. He would teach Harry not only spells but also the ethics and history of magic in a very detailed manner. Harry would grow up with a different set of values compared to the ones he would have if raised by the Dursleys. His view on dark magic might be more nuanced as Merlin has seen the rise and fall of many dark wizards. Also, his relationship with other magical creatures would be different. For instance, he might befriend centaurs or merpeople in a more profound way because Merlin could introduce him to them in a respectful and understanding way. This would make his adventures at Hogwarts and beyond quite different from the original story.