His view of the wizarding world order would be completely different. He might see the Ministry of Magic as an obstacle rather than an authority. And his relationships with other characters would be strained. The way he interacts with Dumbledore, for instance, would be very different. Dumbledore represents the side of good and light, and Harry, raised by Satan, would be on the opposite side. So instead of looking up to Dumbledore, he might see him as an enemy to be defeated.
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.
He'd be more adaptable. Quarians live in a different way than wizards, so Harry would learn to be flexible in new situations.
Harry in this fanfiction is likely to be more ruthless. Voldemort's upbringing would make him less empathetic. He may value power above all else and be more willing to use dark magic to achieve his goals. His relationships would also be different. He wouldn't have the same close - knit group of friends as in the original story. Instead, he might be surrounded by Death Eaters or those who follow Voldemort's ideology.
He would likely be more confident in his physical abilities. Yoruichi is a very capable fighter, and if she raised Harry, he would be trained in combat. So he might not be as hesitant in dangerous situations as the original Harry. He could be more likely to take risks and trust in his own strength.
His personality would likely be more cold and calculating. He'd be used to getting his way through underhanded means taught by the villains.
He becomes more humble. Elves are used to serving and being in a subservient position. Growing up with them, Harry would learn the value of every being, no matter their status. He'd be less likely to show off his magical abilities like he might have in the original story.
He might become more confident in his pure - blood heritage. Since Dorea Black is from an old pure - blood family, she could instill in Harry a sense of pride and belonging that he didn't have in the original story. This could change his attitude towards other pure - bloods and half - bloods.
The story would be unrecognizable. His character would be different, and so would his relationships.
He would be more cunning. Maleficent is a master of manipulation, and Harry would likely pick up on those skills. He might be less naive compared to the original Harry.
Well, Harry's character development would be drastically different. Sesshomaru's values of honor and power would seep into Harry. Harry could become more aloof and less empathetic towards others. Instead of the warm - hearted boy we know, he might be more like a lone wolf. His approach to fighting Voldemort would be less about protecting others out of love and more about a personal vendetta and a sense of duty based on Sesshomaru - like values.
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.