The change in the storyline would be multi - faceted. Emotionally, Harry would be on a different journey. He would be dealing with feelings of betrayal (if he believes Dumbledore has wronged him) and determination to prove himself right. In terms of the plot, the search for Horcruxes might take a different turn. Harry might not follow Dumbledore's clues as closely. He could end up finding Horcruxes in different ways or even missing some if he doesn't have Dumbledore's wisdom. And the final confrontation with Voldemort would be more unpredictable. Harry's rebellion could lead to a more evenly matched battle as he might not have all the advantages that Dumbledore's guidance would have provided.
One possible reason could be a difference in ideology. Maybe Harry starts to question Dumbledore's decisions regarding the war against Voldemort. For example, Dumbledore's secrecy about certain things might make Harry feel left out and manipulated. Another reason could be personal pride. Harry has grown into a powerful wizard and may not want to be under Dumbledore's constant guidance and control any longer. He might think he can handle things on his own better. Also, it could be due to the influence of other characters. If some new friends or allies have different views on Dumbledore, they could sway Harry's opinion.
The power dynamics shift significantly. Instead of Dumbledore being the all - knowing guide, Harry becomes more of an independent force. This could lead to a more chaotic battle against Voldemort as Harry might not follow Dumbledore's strategic plans.
In the Harry Potter series, saying that Dumbledore "schemed" against Harry Potter was a bit biased. Dumbledore did have a plan for Harry's growth and destiny in many ways. For example, he gave Harry to the Dursleys to be raised. On the one hand, it was to keep Harry away from the danger of being tainted by fame and fortune at an early age. Growing up in an ordinary family in the Muggle world, Harry grew up in such a repressive environment and had a strong ability to resist pressure. On the other hand, it was to protect Harry from Voldemort or his henchmen. Throughout the entire plan against Voldemort, Dumbledore knew Harry's special identity and his key role in the fight against Voldemort. Although he knew that Harry might face great danger or even death, he was trying his best to guide, support, and protect Harry. He had always been Harry's mentor and supporter, helping Harry explore the wizarding world, unravel his family's secrets, and uncover the truth behind Voldemort's schemes. His arrangements were more out of the grand goal of protecting the Wizarding world, fighting against Voldemort, and the comprehensive consideration of Harry's growth and development, rather than malicious " calculations." Harry Potter and the Order of the Phoenix is not enough. Please click to read the novel!
It might make Harry more confident. With Dumbledore's training, Harry gains more knowledge and skills, which gives him the confidence to face challenges.
Fanfiction often creates alternate scenarios. It could be that Dumbledore has a hidden agenda that Harry uncovers, which goes against Harry's sense of right and wrong. Maybe Dumbledore is trying to sacrifice Harry in a way that Harry doesn't agree with, leading to their opposition. This can be a very creative way to rewrite the dynamics between the two characters.
One reason could be a misunderstanding. Maybe Harry discovers some actions of Dumbledore that seem wrong at first glance, like the way he's been handling secrets about Harry's past or Hogwarts' safety. For example, Dumbledore's decision to keep Harry in the dark about certain prophecies might make Harry feel betrayed and lead to a conflict.
Well, Harry's character development could be quite complex. He might initially be shocked or even angry when he 'turns on' Dumbledore. As he delves deeper into his new feelings, he could start to question his own beliefs and values that were influenced by Dumbledore. This could make him explore different magical paths or ways of fighting against Voldemort. For example, he might look into more radical or unorthodox methods instead of relying on Dumbledore - inspired strategies.
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.
It could be that Dumbledore has some strategic or protective reasons. Maybe the electives Harry chose initially could expose him to greater risks or prevent him from developing crucial skills needed later on.
The relationship might turn into one where Harry has to constantly remind Dumbledore of who he is and their shared experiences. Dumbledore, in his senile state, could forget important things about Harry like his role in the fight against Voldemort. Harry would then have to patiently re - introduce himself and the situation. This could be frustrating for Harry at times, but it could also deepen his understanding of Dumbledore as a more human and fallible figure.