Being raised by a phoenix could make Harry more of an enigma. He would have an air of mystery around him. He would be more resilient and less likely to give up in the face of danger. His connection to the phoenix's magic would make him seem almost otherworldly to his peers, and he might struggle to fit in at first because of how different he is.
If house - elves raised him, Harry would be extremely humble and have a strong sense of service. He wouldn't have the same pride as he does in the original series. He would also be very good at taking care of details and might be more of a behind - the - scenes helper at Hogwarts rather than the center of attention all the time.
If Harry was raised by Potter elves in fanfiction, his character would be very different in several ways. Firstly, his sense of family would be much broader. The elves would be like his extended family, and he would have a deep - rooted loyalty to them. This would make him more inclusive when it comes to making friends at Hogwarts. Instead of just sticking to the Gryffindors, he might befriend students from all houses. Secondly, his relationship with power would be different. The elves don't seek power in the way wizards do. So, Harry would be less interested in fame and more interested in using his magic for the good of all. He would be more of a behind - the - scenes helper rather than a spotlight - seeking hero. And finally, his understanding of magic would be more practical and down - to - earth. Elves use magic for daily tasks, and Harry would learn this kind of magic first. So, when he goes to Hogwarts, he might be able to solve problems in a more unorthodox but effective way compared to the other students.
He would be more cynical. Demons are not known for their positive outlooks. So Harry might not trust easily. He'd also likely be more aggressive in achieving his goals, as demons often value power and dominance. His view of magic would be more skewed towards the dark arts.
He might be more laid - back. Irish culture has a certain charm and easy - going nature, so Harry could be less uptight than in the original. He could also be more superstitious due to Irish folklore.
Harry would be more territorial. Goblins are known to be possessive of their spaces and belongings. So, Harry would probably be very protective of his personal space and things. Also, his sense of justice might be different. Goblins have their own rules and laws, and growing up with them, Harry would view right and wrong from a goblin - centered perspective rather than a wizard - centered one.
He'd be more animalistic. He might move on all fours more often and be more comfortable in the wild. His communication skills could be more primal, using grunts and gestures at first.
He'd be more in tune with his instincts. Instead of relying on the social norms of the wizarding world, he'd follow his gut feelings more. For example, in a dangerous situation, he might act like a wolf in a pack, assessing threats quickly and instinctively.
He would be more feral. The Xenomorphs' aggressive and survival - based nature would likely rub off on Harry. He'd be less hesitant in a fight compared to the original Harry, and more likely to use brute force along with his magic.
He'd likely be more withdrawn and edgy. Constant exposure to the creepy elements would make him less trusting and more on - guard all the time.
He'd probably be more refined. The Delacours are known for their elegance, so Harry might have better manners and a more sophisticated way of speaking.
His magic might be more elemental. Since Greek magic often ties in with the elements like fire, water, earth, and air. He could have an easier time with spells related to these elements compared to other Hogwarts students.