His character might become more reserved. Since ice is often associated with coldness, he could start to distance himself from others, afraid that his new powers might accidentally harm them.
On the other hand, he could become more confident. Having unique powers like ice powers gives him an edge, and he might use this to his advantage in various situations, whether it's in school or in dealing with his enemies. He could start to see himself as a special and powerful individual.
One possibility could be that Draco uses his ice powers to protect his friends. In the fanfiction world, he might be in a situation where his friends are in danger from some sort of fire - based threat. His ice powers would come in handy to extinguish the flames and keep everyone safe.
His relationship with his teachers would also be different. Iruka would be extremely proud but also a bit worried about Naruto getting too cocky with his powers. Kakashi, on the other hand, would be more focused on training Naruto to control and master these powers. Naruto's new powers could also attract the attention of other ninja villages. This would put pressure on his relationships with the people in his own village as they might see him as a potential target or a valuable asset. Some might be jealous, while others would be more eager to be his ally.
His friends in Konoha like Shikamaru and Kiba would see Naruto in a new light. They might rely on him more for protection, but also feel a bit of distance because of his elevated status. Naruto would have to work hard to maintain his old friendships and show them that he's still the same person deep down.
With Sasuke, it could create a new dynamic. Sasuke might be initially jealous of Naruto's new power but then realize they can work together better. For example, Sasuke's fire - based attacks could combine with Naruto's ice - make to create steam - based jutsus. With Sakura, she might be more protective of Naruto as she fears the ice - make ability could harm him or be a sign of some deeper trouble.
Her relationship with Harry might become more of a protector - protected dynamic. Harry would be in awe of her new powers and might rely on her more in dangerous situations. With Ron, there could be some jealousy at first as he might feel left out. But eventually, he'd see the value of her powers and they'd become closer in a different way. And with the professors, they would either be intrigued and want to study her powers or be a bit cautious in case the powers got out of control.
If Hiccup had powers, their bond could become even stronger. For example, if Hiccup could share his thoughts directly with Toothless using his new power, they would be able to coordinate in battles more seamlessly. Toothless might also become more protective of Hiccup, knowing that his rider now has powers that could attract unwanted attention. They could communicate in ways that no other dragon - rider pair could, like sharing memories or feelings instantaneously.
His character would likely become more intellectual. Athena is the goddess of wisdom, so Draco might focus more on learning and knowledge - seeking. He could start to question the pure - blood ideology he grew up with if it doesn't align with Athena's values of wisdom and fairness.
If Spider - Man had mutant powers in fanfiction, his origin story might be different. Instead of being bitten by a radioactive spider, he could be born with his powers. This would change his relationship with the scientific community. For example, he might not be as interested in science as the original Spider - Man. His powers could also be more uncontrollable at first, leading to different challenges in learning to use them.
Well, in his relationships, if we consider his friendship with other Slytherins, they might see his tail as a sign of weakness at first. But as time goes on, they might realize it gives him an edge in certain situations and respect him more. In his relationship with his family, they could either be ashamed or try to find a way to use it to their advantage. And with his romantic interests, it could be a strange but endearing feature. The girl or boy he likes might be initially hesitant but then grow to love this unique part of him, seeing it as something that makes Draco truly special.
Well, it could make him more conflicted. With demonic powers, Naruto might struggle with the darker aspects of those powers. He has always been about positive energy and friendship, but the demonic powers could introduce an inner turmoil as he tries to control them without losing his true self.