If adopted by fairies, Harry would probably be more solitary at first. Fairies' habitats are often secluded. But this solitude would make him introspective. He would have to rely on himself more and learn to trust his own instincts deeply. As he grows, this would make him a very self - assured wizard. When he finally enters the wider wizarding world, he would bring with him a sense of confidence and a unique perspective on magic that no one else has, having been raised by fairies.
Harry's character could develop a sense of wonder that is even greater than in the original story. Living with fairies, he would be exposed to their magical and often whimsical ways. He might start to see magic as something that is not just for fighting dark forces but also for creating beauty and harmony. He could become more of an artist of magic, using it to create amazing displays of light and color in the forest where he lives.
Harry would likely become more self - assured. With Merlin as his mentor, he'd have access to ancient wisdom. He might be less impulsive as he learns from Merlin's calm and collected ways.
His character would become more hardened. Constantine's world is tough, so Harry would grow up quicker. He'd be more street - smart.
His character would become more adaptable. Having to fit into the Cullen family, which is so different from what he's known in the wizarding world, would force him to be more flexible. He might become more secretive as well, since he'd need to hide his wizarding past from most of the vampire world.
His character could develop in several ways. Firstly, he would gain a sense of self - worth as Hecate chose him. He would become more in tune with his emotions as Hecate might teach him to use his feelings in magic. Also, he would be more open - minded, exploring different forms of magic that could change his view of the wizarding world and his place in it. He may become more of a leader, using his new knowledge to guide others in the fight against evil.
His character would likely become more reserved. Snape's influence would make Harry more cautious and less impulsive. He would be more attuned to the darker aspects of magic and the wizarding world.
Harry's character would likely become more independent and self - reliant. Alduin may not coddle Harry like some of his Hogwarts mentors did. He'd have to learn to fend for himself in a strange new world. His sense of adventure would be heightened as he explores Alduin's domain. Also, his view of magic would expand greatly, which could make him more confident in his abilities.
His character would probably become more humble. Elves are not as prideful as some wizards, so Harry might adopt that trait.
If adopted by Might Guy, Harry's character would experience a major transformation. His view of power and strength would expand. He would no longer see magic as the only means of protection and combat. This would lead to a more complex understanding of the world around him. Harry would also inherit some of Guy's values, such as perseverance and loyalty. These values would be added to his existing ones, like his sense of justice from the wizarding world. His relationships with others might also change. He could become more of a leader in a physical sense, inspiring those around him not just with magic but also with his new - found physical and mental strength.
Harry would probably be more in tune with nature and magical creatures. He'd be less likely to be as reckless as he sometimes is in the original story. Newt's calm and methodical ways would rub off on him. He might be more hesitant to jump into dangerous situations without thinking about the consequences to the surrounding environment and creatures.
His character would likely become more conflicted. Harry was always a symbol of good in the original series, but under Grindelwald's influence, he'd be exposed to different ideas of power and control. He might start to question his own beliefs.