Voldemort is a common one. In many fanfictions, their duels are epic battles of good vs evil, with Harry using his duelist skills to outwit Voldemort.
Some fanfictions might have new, original opponents for Harry. For example, a dark wizard from a far - off land who challenges Harry's duelist skills in ways he's never experienced before. This adds a fresh and exciting element to the story.
One common opponent could be other dark wizards. These wizards might also be skilled in dragon dueling and use their dragons to spread chaos. They would see Harry as a threat and try to defeat him in duels.
It could be some Death Eaters who are causing chaos at the World Cup. They might be trying to disrupt the event and target Harry.
One great 'Fem Harry is a Duelist' fanfiction is 'The Duelist's Path'. It really delves into how being female changes Harry's approach to dueling. Instead of the brute force that male Harry might use, Fem Harry uses more finesse and strategy, which makes for a really interesting read.
One good one could be 'Harry's Duelist Ascent'. It shows Harry's journey in becoming a master duelist, with great descriptions of his training and the duels he participates in.
It's also about seeing Harry in a different light. In the original books, dueling is part of the story but not the main focus. In fanfiction, when Harry is a duelist, we get to explore his character more deeply in terms of his competitiveness, his strategic thinking, and his growth as a wizard. For instance, in some fanfics, Harry has to face new and more powerful opponents which forces him to develop new spells and techniques. This adds a new dimension to his character that many fans find fascinating.
One great duelist Harry fanfiction is 'The Duelist's Ascent'. In this story, Harry discovers a new form of magic related to dueling that sets him apart from his peers. It has exciting dueling scenes that really showcase Harry's growth as a powerful wizard in the dueling arena.
Character development. When Fem Harry is a duelist, it's not just about the dueling skills. It's about how being a duelist shapes her as a person. For example, she might gain confidence and independence through her dueling achievements.
Often in fanfiction, Harry Potter outwits his opponents in political situations within the wizarding world. Given his status as 'The Boy Who Lived', he has a certain influence. He can use this to his advantage by making shrewd political moves. For example, he might outwit a corrupt Ministry official by exposing their wrongdoings in a clever way. He could also outwit dark wizards who are trying to infiltrate Hogwarts or other wizarding institutions by setting up elaborate security measures and traps based on his knowledge of magic and the castle's secrets.
Voldemort could be one of his main opponents, even in the game world. Voldemort might try to use dark magic within the game to defeat Harry. Another could be Draco Malfoy. Draco would be jealous of Harry's success in the game and try to undermine him at every turn, using his family's influence within the game's magical society.
One idea could be a fanfiction where a young, unknown wizard suddenly shows extraordinary dueling skills in Hogwarts and challenges the traditional dueling champions. This new character could have a unique magical heritage that gives them an edge in duels.