The theme of betrayal also frequently appears. In many 'Harry Potter's Revenge' fanfictions, Harry has been betrayed by someone close to him, like a friend or a mentor. His revenge is then not just about getting back at that person, but also about restoring his own sense of self - worth and trust. He might go to great lengths to expose the betrayal and make the betrayer face the consequences, which can lead to some very intense and emotional storylines.
Perhaps in this fanfiction, Harry discovers some dark secret about the Weasleys that he believes endangers him or the wizarding world. His revenge could then be to expose this secret in a way that embarrasses the family. He might use his influence and knowledge to make sure the Weasleys are shunned by some in the wizarding community.
One possibility could be that Harry uses his fame and influence in the wizarding world against Snape. For example, he could spread rumors about Snape's past misdeeds that were overlooked during the war. Harry might also use his skills as an Auror to dig up some dirt on Snape, perhaps something related to his time as a Death Eater. Another way could be that Harry uses his friendship with Hermione and Ron to come up with some elaborate pranks to embarrass Snape in front of the students and faculty at Hogwarts. Maybe they could use magic to make Snape's potions backfire during a class demonstration or cause his robes to change color unexpectedly.
I'm not sure specifically as there are many fanfictions with that theme. It could be about a character getting revenge on their enemies in the Harry Potter universe, perhaps a student getting back at a bully like Draco Malfoy, or a wizard seeking vengeance against a dark wizard. There are countless creative ways this could be explored in fanfiction.
It could also be some external force that is manipulating Harry into believing the Weasleys are his enemies. For example, a dark wizard who wants to create chaos in the wizarding world by turning Harry against his friends. In this case, that dark wizard would be the main antagonist even though Harry is the one carrying out the revenge actions.
Another interesting one is 'Harry's Silent Revenge'. Here, instead of using brute force, Harry uses his intelligence and charm to subtly get back at those who have mistreated him. He spreads rumors, plants false evidence, and uses his connections in the wizarding world to create a web of chaos for his enemies without them ever realizing it was him until it's too late.
One interesting 'Harry Potter revenge fanfiction' might be where Harry gets revenge on the Dursleys for years of mistreatment. He could use his magic in creative ways to make them understand how cruel they were. For example, he might make them experience the same isolation he felt in the cupboard under the stairs.
One popular 'revenge Harry Potter fanfiction' might be those where Harry gets revenge on the Dursleys for their mistreatment. In some fanfics, he uses his magic in clever ways to make them realize how wrong they were. For example, he might expose their lies to the neighbors in a magical but non - violent way. Another type could be Harry getting revenge on the Death Eaters in a more brutal fashion than in the original books, perhaps using dark magic he learned from some hidden source. However, it's important to note that these often deviate from the original themes of the Potter series.
Hermione would be a likely supporter. She is always loyal to Harry and if he presented her with evidence of Dumbledore's wrongdoings, she would probably side with him. She has the intelligence to help Harry strategize and find ways to expose Dumbledore. For example, she could use her research skills to dig deeper into Dumbledore's past.
In such fanfiction, usually the character uses a time - turning device or some magical spell. They then travel back with the intention of revenge. For example, if it's Harry, he might go back to when Voldemort was still a student at Hogwarts to stop him before he becomes a dark wizard. He could use his knowledge of the future, like knowing about the Horcruxes, to defeat Voldemort early and get revenge for all the lives lost in the original timeline.