Often, yes. Fanfiction is a creative space. Writers can take the basic framework of a character and expand on it in ways that the original source didn't. This can lead to characters behaving differently. A character that was a sidekick in the original might be the main hero in a fanfiction, and their personality might be adjusted to fit this new role. They could become more confident and assertive compared to their meeker original self.
Well, it depends. Some fanfiction aims to stay true to the original characters. But a lot of the time, writers will tweak things. They might put a character in a situation that forces them to act out of character in order to create drama or explore new relationships. For instance, in some fanfictions about superheroes, a hero who is always selfless in the original might struggle with selfish desires in the fan - created story.
Fanfictions often change the way the Basilisk is defeated. Instead of the traditional way in the books, the characters might use different strategies or magical items. Also, the relationship between the Basilisk and other characters can be completely different. Maybe the Basilisk teams up with a character against a common enemy in the fanfiction world. This is a big deviation from the original where it was a clear antagonist.
Often, they might have different moral compasses. While Dresden has a strong sense of right and wrong, some fanfic characters could be more morally ambiguous, perhaps being willing to use darker magic for what they consider to be a greater good.
Often in 'naruto sakura fate fanfiction', the relationship between Naruto and Sakura develops differently. In the original, their relationship is more of a one - sided love from Naruto towards Sakura for a long time. But in fanfiction, it might be that Sakura realizes her love for Naruto much earlier or in a different way.
Often, the power dynamics change. In the original, Voldemort is male and the ultimate villain. But in the fanfiction with Fem Voldemort, the character might be portrayed with different motives or a different backstory that makes her more complex than just a one - dimensional evil force.
For Fem Naruto, she could be more nurturing compared to the male Naruto. She might show more empathy towards her friends and enemies alike. Her determination could also be expressed in a different way, perhaps more subtly. Regarding Madara, his pride might be less of an all - consuming trait. He may be more vulnerable in the fanfiction. With Fem Naruto around, he could start to show a side of himself that values connection over power. He might also be more hesitant in his actions as he is influenced by Fem Naruto's different approach to life.
Well, in the original plot, Harry is the hero. But in 'dark lord harry fanfiction', he becomes the antagonist. This completely flips the power dynamics. For example, instead of fighting Voldemort, he might be the one causing chaos and destruction like Voldemort did. Also, his relationships with other characters change drastically. His friends may become his enemies or at least be very wary of him.
Fanfiction may also give Ash different abilities or tools to capture legendaries. In the original, he mainly uses Pokeballs, but in fanfiction, he could have a special device or power that gives him an edge. For example, he might be able to use a 'Legendary - specific Pokeball' that has a higher success rate. Also, his relationships with other characters might be altered in ways that help him in his legendary - capturing quests.
The character development in fanfiction is also different. In the original, Sakura was mainly in love with Sasuke, and Hinata was shyly in love with Naruto. But in fanfiction, they might all be more equal partners. They could be training together, sharing secrets, and having a much closer relationship than what was shown in the anime or manga, which completely changes the dynamic from the original plot.
It probably deviates by introducing the concept of imprinting which may not be part of the original character arcs. In the original, their relationships and storylines might be more straightforward, but in this fanfiction, the imprinting adds a new layer of complexity and a different type of bond.
Yes, it's quite common. Fanfic often takes creative liberties and may go in different directions from the original.