Harry's personality could become more disciplined. Beerus is all about discipline in his training. So, Harry would have to follow strict rules. This could make him more focused and less impulsive in his actions, which is a big change from his sometimes reckless nature at Hogwarts.
Well, after being trained by Beerus, Harry Potter could become more of a lone wolf. Beerus' training is often solitary in nature. Harry might start to rely more on his own strength and less on his friends. However, he would also gain a new sense of respect for power and those who possess it, which could make him more diplomatic when dealing with other powerful wizards or creatures.
His personality would likely become more brooding. Darth Vader's influence might make Harry more withdrawn as he grapples with the new and often dark teachings. He may lose some of his innocence and optimism.
He might become more bold. Thor is a very bold character, and his influence could make Harry less hesitant.
Well, Harry Potter might gain some really powerful and unique abilities. Beerus is extremely strong in the Dragon Ball universe. He could teach Harry new forms of combat, perhaps some ki - based magic. Harry might also learn about different levels of power control, which could make him even more formidable against Voldemort and his Death Eaters.
His confidence could take on a different form. While Naruto has always been confident in his abilities, training with Zoro would make him more self - assured in a more reserved way. Zoro's tough training would force Naruto to prove himself not just to others but also to himself, and this could lead to a more mature kind of confidence. Also, Naruto might become more introverted as he focuses more on his training, similar to how Zoro is often focused on his own improvement.
If trained by Orochimaru, Harry's magic could change in several ways. Firstly, he might develop a more aggressive and offensive style of magic, as Orochimaru is often focused on power and combat. Secondly, he could start using magic in a more self - serving way, rather than for the good of others as he was taught at Hogwarts. And finally, his connection with magical creatures might change, especially if Orochimaru introduced him to some of the more dangerous and exotic creatures in his world. Harry's magic would no longer be the pure and somewhat naive magic he had before, but a more complex and potentially dangerous form of magic.
If Harry Potter was trained by Morgana in fanfiction, his story would take a very different turn. Morgana's influence would bring a new level of complexity to Harry's character. He might start to question the very nature of good and evil, as Morgana's magic often blurs those lines. His relationships with his friends like Ron and Hermione would be put to the test. They might not understand his new path and he might feel isolated from them. His new skills and knowledge from Morgana could also attract the wrong kind of attention from dark wizards who want to use him for their own purposes. His story would be a tale of self - discovery in a much darker and more complex magical world.
His personality would likely be more cold and calculating. He'd be used to getting his way through underhanded means taught by the villains.
His confidence might become more of an overbearing arrogance. Since Acnologia is so powerful, Natsu could start to think he's invincible after being trained by him. He might become more solitary too, as Acnologia is often depicted as a lone figure. Natsu might start to distance himself from his Fairy Tail friends because he feels he's on a different level now.
His confidence might increase even more. Female Madara is a strong figure, and being trained by her would give Naruto a sense of having access to greater power. So he would be more self - assured in his actions.
His personality could become darker. Darth Vader's influence might make Naruto more brooding and less of the optimistic character he is. He could start to value power more than friendship at times.