Harry's character would likely become more conflicted. He'd be exposed to Grindelwald's radical ideas, which might make him question the values he learned at Hogwarts. His sense of right and wrong could be blurred, and he'd have to struggle to hold onto his true self.
Harry's character would experience a significant transformation. Initially, he'd be intrigued by Grindelwald's power and knowledge. As he trains, he'd gain a new understanding of magic that is far from the traditional Hogwarts education. This could make him more arrogant for a while. But as he witnesses the consequences of Grindelwald's actions, he'd start to regret his association. His journey would then be about redeeming himself and using the knowledge he gained in a positive way to fight against Grindelwald and his ilk.
If trained by Grindelwald, Harry might become more cynical. Grindelwald's teachings would be full of self - interest and power - seeking. Harry, being impressionable, could start to view the world in a more Machiavellian way. He'd have to unlearn these ideas later on if he wants to return to the side of good. He may also develop a more solitary nature as he becomes involved in Grindelwald's world, distancing himself from his friends at Hogwarts.
Harry might start off as a bit naive about the darker aspects of magic. But as he is trained by Grindelwald, he becomes more aware of the grey areas in the wizarding world. His character could become more conflicted as he is exposed to Grindelwald's teachings. He may question his previous beliefs and values.
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.
She would likely start off very influenced by Grindelwald. Maybe she'd be a bit cold and calculating like him at first. But as she experiences more of the world, she'd become more empathetic. For instance, if she meets a group of oppressed wizards, she'd start to question Grindelwald's views.
His confidence would soar. Merlin's training would give him a sense of being part of a greater magical heritage. He would be more self - assured in his actions and decisions. For example, he wouldn't second - guess himself as much when facing challenges.
His character would become more self - reliant. Hawkeye's training would push Harry to trust his own instincts more. He'd no longer rely solely on his friends or the guidance of Dumbledore. Harry would also become more confident in his abilities, both magical and non - magical. He'd be able to face challenges with a new - found determination, knowing that he has skills beyond just magic.
Harry would become more centered. Oogway's training would likely make Harry less impulsive. For example, instead of immediately jumping into a fight with a Death Eater, he would first assess the situation calmly. His values might also shift slightly, placing more emphasis on harmony and balance in the wizarding world.
His character would likely become more cunning. Goblins are known for their cleverness, and under their training, Harry would pick up on their shrewd ways. He might be less trusting and more calculating, which could be both a strength and a weakness.
Grindelwald's character might also develop in fanfiction by having a redemption arc. He could be influenced by Harry Potter's ideals of love and friendship. For instance, after a series of battles and discussions with Harry, he starts to question his own beliefs and gradually moves towards the light side.
His character would likely become more mature. Learning from Flamel, an ancient and wise wizard, would expose Harry to different values and ways of thinking. He might become more patient and less impulsive in his actions.
Harry Potter's character would develop a sense of mystery. Doctor Strange's magic is often associated with the unknown and the arcane. After being trained by him, Harry might start to act more mysteriously, keeping his new skills and knowledge under wraps until the right moment. This new air of mystery would not only add to his allure but also make him a more unpredictable opponent for Voldemort. His relationships with his friends might also change. They might see him as someone who has moved to a different level of magic, and there could be some initial distance or envy, but Harry would also be able to use his new skills to protect them better in the long run.