In some fanfics, Harry might be more open - minded towards Luna's eccentricities compared to in the books. He could be shown to fully embrace her ideas right away instead of gradually coming to respect them. Luna, on the other hand, might be made even more confident in her beliefs and actions. For example, she could be more assertive in standing up for her views on magical creatures, like the Crumple - Horned Snorkacks.
The power of augureys is often enhanced in fanfic. While in the books, their significance was somewhat limited. In fanfic, they might have the ability to heal with their feathers, or their song could have the power to put dark creatures to sleep. This expansion of their abilities makes them more interesting and central to the plot in many fan - created stories.
In the original books, Thestrals were not as prominently featured. But in fanfic, they can be the main focus. For instance, in some fanfic, Thestrals are shown to be more intelligent and able to communicate in ways not shown in the books.
In fanfiction, sometimes Harry Potter's heroism is shown through different relationships. Maybe he has a closer bond with some characters that were not as emphasized in the original books, and this relationship drives his heroic actions in a new way. Also, the challenges he faces could be more complex or unique compared to the ones in the original story. In the original books, the main threat was Voldemort, but in fanfiction, he could be dealing with all kinds of new dark forces or complex moral dilemmas that further define his heroism.
Well, in fanfiction, Draco's arrogance from the books can be toned down a bit. He could be shown as secretly having a good heart all along. His snobbishness might be a front that he drops more quickly. Hermione's perfectionist streak can be exaggerated in some fanfictions. She might be even more obsessed with her studies and magic, but also more likely to let her guard down around Draco. And in fanfiction, their mutual understanding of each other's situations can be explored more deeply. For instance, Draco understanding Hermione's plight as a Muggle - born in a prejudiced wizarding world, and Hermione understanding Draco's family pressures.
Well, Lucius can be shown as having a softer side. Maybe he has a paternal instinct that was not evident in the books. He could be more patient with Harry and less arrogant. Harry might be portrayed as more curious about the Slytherin way of life, which was something he completely shunned in the original story. He might start to appreciate some of the values that Lucius holds dear, like family honor and wizarding heritage, even if he doesn't fully agree with all of them.
In some fanfictions, a Patronus might be more powerful than in the original books. For example, it could have additional abilities like being able to communicate complex thoughts instead of just being a defensive charm. Fanfic authors often like to expand on the magic system.
In these fanfictions, Draco may be shown as a more vulnerable character. His marriage to Harry makes him show his softer side that was hidden in the original series. Harry might be portrayed as more confident in his choices outside of just fighting Voldemort. His relationship with Draco gives him a new kind of strength and stability, and he becomes more of a relationship - builder in the fanfic world.
In some fanfictions, Harry Potter's magical abilities might be enhanced. For example, he could have the power to control elements in a more advanced way compared to the books. Maybe he can create huge storms or manipulate fire to a greater extent. This gives the author more creative freedom to explore different storylines and scenarios.
She could be depicted as having some of Harry's signature traits but in a more feline or whatever form she takes as a familiar way. For example, her curiosity would be enhanced. Just like how Harry was always exploring the unknown in the original story, fem Harry as a familiar would be constantly sniffing out new things for Luna. And she might have a bit of a feisty side when it comes to protecting Luna from bullies at Hogwarts.
In fanfiction, Dobby is often given more agency. In the original books, he is very much a servant - like figure at first. But in fanfictions, he can be a leader in the fight against the dark forces. For example, he might lead a group of house - elves in a rebellion against the Death Eaters who are cruel to them.