One possible scenario in this fanfiction could be that Harry and Fleur form an unexpected alliance during the Triwizard Tournament tasks. They might discover they have complementary skills, like Harry's courage and Fleur's elegance and magic related to water (since she's from Beauxbatons). This alliance could lead to them facing the challenges in a new and interesting way, perhaps with Fleur using her Veela charm in a creative manner to distract the obstacles while Harry uses his Gryffindor bravery to take on the more physical parts of the tasks.
The fanfiction could explore how Harry and Fleur's different backgrounds influence their experiences in the Triwizard Tournament. Harry, coming from a rather rough childhood and being a Hogwarts student, has a different approach to magic compared to Fleur, who was trained in the more refined Beauxbatons way. This difference could lead to some interesting moments of cultural exchange and mutual learning. For instance, Fleur could teach Harry some of the more sophisticated French spells she knows, while Harry could show Fleur some of the more practical spells he's learned from his adventures at Hogwarts.
In the fanfiction, Harry and Fleur could develop a romantic relationship during the Triwizard Tournament. Fleur might be initially attracted to Harry's fame as the Boy Who Lived, but as they spend more time together training for the tasks, they start to truly care for each other. Their relationship could face challenges from the competition itself, as well as from the opinions of others at Hogwarts and Beauxbatons. For example, some students might be jealous or think it's inappropriate due to them being from different schools.
There are fanfictions where Hermione and Fleur become friends during the Triwizard Tournament. In some stories, they start to see past their initial rivalries. Fleur might initially see Hermione as just a book - smart girl, but as they face the challenges of the tournament together, they develop a mutual respect. Maybe they work together on the Yule Ball preparations within the context of the tournament, which helps to strengthen their bond.
Perhaps in the fanfiction, Fleur could be in danger during one of the Triwizard Tournament tasks. Harry, being the heroic type, decides to risk everything to save her. This act of heroism not only changes their relationship but also how the other champions and the judges view Harry. It could also lead to some changes in the overall dynamic of the tournament, like new rules being implemented to prevent such dangerous situations in the future.
Their relationship could start with mutual respect. Harry respects Fleur's beauty and magical abilities, and Fleur respects Harry for his courage. This could gradually turn into friendship as they train together for the tasks. For example, they could practice spells and share strategies.
One possible fanfiction could be about Harry and Hermione teaming up secretly during the Triwizard Tournament tasks. They might use their combined knowledge and skills to outwit the other competitors. For example, in the maze task, they could have a special code to communicate and find their way to the Triwizard Cup faster than anyone else.
There could be a plot point where Fleur's Veela heritage causes problems during the tournament. For example, it might attract unwanted attention from some of the creatures in the tasks, like the dragons in the first task. Harry has to use his quick thinking to protect Fleur and keep her focused on the task at hand. This could lead to some comical as well as intense situations as they try to deal with the chaos caused by her Veela charm.
In some fanfictions, the author might explore the idea that the person who dragged Harry into the Triwizard Tournament has a personal vendetta against him. Maybe it's a relative of a Death Eater who wants to see Harry fail publicly or even die during the tournament. Harry then has to not only survive the tasks but also figure out who is behind this plot against him.
One possible fanfiction could be about Harry getting amnesia during the Triwizard Tournament and Luna being the one to help him remember. Maybe she uses her unique perspective and knowledge of magical creatures and odd things to jog his memory. For example, she might take him to see the Thestrals, which are associated with death and memory in the wizarding world.
The fanfiction could take an interesting turn if the dark elf part of Harry was somehow tied to the origin of the Triwizard Tournament. Perhaps there was an ancient dark elf magic involved in the creation of the tournament, and Harry, being part dark elf, has a special connection to it. He could then uncover secrets about the tournament that no one else knew, which could give him an edge in the tasks.
A common plotline is that of Hermione and Fleur teaming up against the other competitors. This is interesting as it subverts the expected rivalry. They can use their combined strengths to overcome challenges that neither could face alone. For example, Hermione's strategic thinking paired with Fleur's beauty - based magic can be a formidable combination in tasks like the maze.
One great fanfiction could be where Harry and Luna team up in a unique way during the Triwizard Tournament tasks. Maybe Luna uses her off - beat magical knowledge to help Harry solve the puzzles in the maze. For example, she might recognize some magical creatures that Harry is unfamiliar with and guide him through.