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.
Well, Harry Potter has magic powers like spells and the ability to use a wand. Ghost Rider has his flaming skull and penance stare. If they were in a fanfiction together, maybe Harry could use his magic to enhance Ghost Rider's attacks. For example, he could cast a spell to make Ghost Rider's chain longer or stronger during a battle.
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.
Well, one possibility could be that Harry discovers his ghost powers after a strange encounter in the Forbidden Forest. Maybe he starts being able to pass through walls in Hogwarts, which leads to all sorts of adventures. He could use his powers to spy on the Death Eaters or find hidden secrets in the castle that are only accessible to those with ghost - like abilities.
One cool power often seen in such fanfiction is teleportation. This allows characters to quickly move from one place to another, escaping danger or arriving at crucial moments just in time. There are also powers related to healing, where a character has an extraordinary ability to cure any injury or illness, which can be very useful in the often - dangerous wizarding world.
Harry might gain the ability to dodge attacks more easily. Sans has a certain 'instinct' for avoiding harm, and if Harry had this, it would be much harder for his enemies to land a hit on him. This would be really useful in duels, especially against powerful dark wizards. It could also make his Quidditch playing even more amazing as he could dodge bludgers effortlessly.