Harry having ice powers would make the story quite different. In the wizarding world, most magic is more general in nature. Having ice powers would be a very unique and specialized form of magic. He could potentially use his ice powers to explore areas that are normally too dangerous due to extreme heat or fire - based magic. For instance, he could freeze the dragon in the Triwizard Tournament long enough to get the golden egg. His ice powers could also be a key factor in his relationship with Hermione and Ron. Hermione would be eager to research about this new type of magic, while Ron might be both amazed and a little jealous at first. This would add a new layer of complexity to their friendship.
Well, one spell he might create is 'Ice - Levitate'. This spell would allow him to levitate ice - made objects or even frozen enemies. Also, a spell called 'Arctic - Blast' could be developed. It would send out a powerful blast of ice and cold air that could knock back multiple enemies at once. He could also come up with a 'Cryo - Vision' spell, which gives him the ability to see through ice or in icy conditions more clearly than normal, useful for finding hidden things in ice caves or frozen lakes around Hogwarts.
In some fanfictions, they might show Harry having dark powers through things like unexpected magical outbursts with a malevolent tinge. For example, he could accidentally use a spell that causes harm in a way that seems to draw on darker magic. However, in the original series, Harry is firmly on the side of light magic, so this is a departure in fanfiction.
The powers might also change the way magic is perceived in the story. If Harry can do things like read minds or foresee events, it could make other forms of magic seem less powerful in comparison. Or it could inspire other characters to explore different, more psychic - related magic, thus expanding the magical lore in the fanfiction.
He could start by simple things like creating ice cubes at will. Then progress to making small ice sculptures, which could later grow into larger and more complex ones. Eventually, he could learn to create ice storms or even entire ice landscapes.
Well, if Harry Potter has Deadpool's powers, he might become more carefree and irreverent. His traditional sense of duty could be tempered with Deadpool's chaotic nature. He could start cracking more jokes during dangerous situations, like when facing Voldemort. His attitude towards rules might change too, as Deadpool is not one to follow rules strictly.
Well, there are fanfictions where Harry has godlike powers such as the ability to resurrect the dead. This completely changes the dynamic of the wizarding world as it goes against the natural laws of magic in the original series. Another aspect could be his mind - having the power to read and control the thoughts of every living being, making him almost omniscient and omnipotent within that fictional world.
One challenge could be controlling his new powers. Deadpool's powers are quite wild, and Harry, used to more traditional magic, might struggle to master them. Another challenge could be how the wizarding world views him. His new powers and the resulting change in his behavior might make him an outcast among some in the wizarding community.
Well, if Harry Potter had sans powers, he might be able to teleport around Hogwarts easily. This would make it much simpler for him to avoid danger or get to his classes on time. For example, when facing Voldemort, he could suddenly disappear and reappear behind him to gain an advantage in battle.
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.