Well, for one thing, Harry would probably be more in touch with the old magic. Merlin has a deep connection to the roots of magic. So Harry might learn spells and techniques that have been long forgotten. His relationship with Hogwarts could also be different. Maybe he would see the school as a place to further expand on what Merlin has already taught him, rather than a place to discover magic for the first time.
The dynamic between Harry and the other characters would be completely transformed. Since Merlin has a different way of looking at things compared to modern wizards, Harry would have a unique perspective. He might not be as close to Ron and Hermione in the same way. Instead, he could be more of an enigma to them. Also, his fight against Voldemort could involve more ancient and powerful magic that Voldemort might not be prepared for, because of Merlin's teachings.
The story would be unrecognizable. His character would be different, and so would his relationships.
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.
Harry would probably be more attuned to dark magic. His upbringing by Satan would expose him to different forms of magic and he would have a different understanding of power. He might be more ruthless in achieving his goals and less concerned about the consequences for others. For example, in the original series, Harry was always worried about the safety of his friends, but in this fanfiction, he might use his friends as pawns if it served his purpose.
The story would be completely different. Harry would probably have a very different personality. Instead of the somewhat shy and uncertain Harry we know, he could be more confident and assertive like Captain America. His magical abilities might be used in a more strategic way, similar to how Steve uses his combat skills. And the wizarding world would have to deal with a Harry who has a very different upbringing and set of beliefs.
The story would be drastically different. Harry's personality would be molded by Klingon values. He'd be more bold and confrontational. His approach to learning magic would be different too. Instead of learning from books in a classroom, he might learn through practical combat - like situations. His relationships with other characters would change. For example, Hermione might not be as close to him as she is in the original, because her studious nature might not be as valued in a Klingon - influenced environment.
The story would be drastically different. Harry might not oppose Voldemort. He'd be on the 'dark side' instead. His Hogwarts experience would be non - existent or very different if he even went there. He'd probably use the dark arts more often.
The social structure around him would be different. Indian society has a complex caste system, and the wizarding world in India might also have some form of hierarchy. Harry would have to navigate this while also dealing with the regular challenges of being a wizard. He might also have different values instilled in him from an early age, influenced by Indian culture like respect for elders and family values.
In this fanfiction concept, the plot would see major alterations. With Flash's influence, Harry might not rely as much on traditional magic for transportation. He could zip around Hogwarts and the wizarding world at high speeds, changing the dynamics of his adventures. His battles against dark wizards would be different too. Instead of long, drawn - out duels, he could quickly close the distance and catch his opponents off - guard. Also, his relationship with Dumbledore might be different as he has this new, unorthodox way of dealing with threats.
The plot could change a great deal. For one, the threat of Voldemort might not be as immediate or known in the same way. Harry could be dealing with different dark forces in America, like some ancient and malevolent American - based dark wizards. His journey to discover his past and his power would likely take different turns as he navigates the American wizarding world.
Well, if Harry Potter was raised by Bruce Banner, it would be a very different story. Harry might grow up with a scientific mind. He could learn about gamma radiation and Banner's research. And instead of using magic wands, maybe he'd try to use science to solve problems. Also, he might be more cautious about his anger, like Banner, fearing to turn into something he can't control.