It could completely shift the power balance and moral compass of the story. With Dumbledore on the 'dark side', the usual alliances and conflicts would be turned upside down.
Well, it would have a huge impact. The students might lose a trusted leader, and other characters' motives and actions would likely change in response to Dumbledore's evil turn. It could also lead to new alliances forming and unexpected plot twists.
In terms of the overall plot, it can take a completely different turn. Instead of Dumbledore having a master plan to defeat Voldemort, it might be up to the younger characters to figure out everything from scratch. This makes the fanfiction more of a coming - of - age story where the kids have to face the ultimate evil without the safety net of a competent Dumbledore.
The relationships in the story are affected too. Harry's relationship with Dumbledore would become strained. Other characters who are loyal to Dumbledore might also turn against Harry. And Harry might form new alliances with characters who also have doubts about Dumbledore's leadership in this fanfiction.
Well, it completely flips the story on its head. Dumbledore is a central and positive figure in the original. His death is a major turning point, but for Draco to kill him for Hermione means Draco's character has a huge shift. It also makes Hermione a much more central and controversial figure, as her presence has now caused such a drastic event. The relationships between the main characters like Harry, Ron and Hermione would be severely strained as they deal with this new and unexpected development.
Well, it can change the plot significantly. For starters, she might not follow Dumbledore's instructions blindly. Instead of going on quests or facing challenges that Dumbledore sets for her, she could rebel and take her own path. This could lead to her allying with different characters, perhaps those who are also against Dumbledore's ways. For example, she could team up with some of the more rebellious Slytherins who have their own issues with Dumbledore's leadership at Hogwarts.
In the wider wizarding world, the public who once saw Harry as a hero would be horrified. The Ministry of Magic would likely get involved, and there could be a manhunt for Harry. This would also change the power dynamics among the different wizarding factions. Those who were against Harry all along would use this as proof of his 'evil' nature, while those who supported him would be in a state of confusion and disbelief.
This type of fanfic might shift the focus from the fight against Voldemort to the internal conflict between Harry and Dumbledore. It could explore different character traits of both of them that were not as prominent in the original. For example, Harry's potential for anger and Dumbledore's more flawed side.
Well, it really depends on the character and personality of the sibling. If they're supportive, it could strengthen Harry. But if they're competitive or have a conflicting personality, it could lead to lots of drama and challenges for Harry in the story.
It shakes the foundation of the trust that fans have in the characters. Dumbledore is often seen as a wise and benevolent figure. If Harry destroys his reputation, it makes fans question all the previous events and decisions that Dumbledore was involved in. For example, his guidance to Harry might now seem suspect.
It can bring a fresh perspective. With Draco as a girl, their interactions and relationships with other characters might shift, and their personality traits could evolve differently.
It might make Harry more confident. With Dumbledore's training, Harry gains more knowledge and skills, which gives him the confidence to face challenges.