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.
The 'Harry is evil' fanfictions differ from the original in many ways. In the original, Harry is guided by Dumbledore and his friends towards the path of good. But in these fanfictions, he could be in cahoots with Voldemort or other dark forces. His relationships with other characters also change drastically. His friends may become his enemies as he turns evil, and he may develop new alliances with characters who were originally antagonists in the official story.
Well, in the original 'Harry Potter' series, the story is very much centered around the main plot of the wizarding world's battle against dark forces. However, mass harem fanfictions of 'Harry Potter' often shift the focus. They introduce the concept of a harem, which means Harry has multiple romantic partners or very close relationships. This changes the dynamic completely. Instead of the solitary hero's journey, it becomes more about his relationships with this group of people. Also, the character development might be different as the fanfictions explore different aspects of the characters based on these new relationships.
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.
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.
In some fanfictions, basilisk eyes can be a source of dark magic. They might be used by dark wizards to cast powerful and malevolent spells. For example, a dark wizard could use the basilisk eyes to create a fear - inducing spell that spreads across Hogwarts.
Well, in the original plot, Voldemort is Harry's arch - enemy. But in these fanfictions, they completely flip the relationship. For example, the power dynamics change. Instead of trying to kill Harry, Voldemort is now in a position of protecting him.
It deviates mainly in terms of the ethical and social structure. The original story doesn't have a slavery system. In these fanfictions, it creates a whole new set of relationships and conflicts that are based on the slavery concept, which is a huge departure from the relatively more egalitarian world presented in the original.
In the original story, Harry often uses magic in combat. But in this fanfiction, as a pacifist, he would avoid such violent magic use. His approach to dealing with enemies like Voldemort would be completely different. Instead of a direct magical battle, he might try to find a more peaceful solution.
The original Harry Potter story is about good versus evil, with Harry on the side of good. In the 'harry is a murderer fanfic', this fundamental aspect is turned upside down. Harry's actions in the fanfic would likely have a domino effect on other characters and storylines. For instance, his friends in the original story who support him would now be in a completely different position. They might have to oppose him, which is a radical departure from their original relationships.
Another way it deviates is in the relationships. In the original, relationships are mainly about friendship, mentorship, and the battle between good and evil. In the diaper fanfic, relationships might be more about caregiving, like who takes care of the diaper - wearing characters, and how they interact in this new, more domestic - like situation.