Who could be an unexpected ally for Harry in a Harry Potter third task fanfiction?

In some fanfictions, Harry might struggle with PTSD after the third task. The trauma of facing Voldemort again could haunt him, causing nightmares and making him more withdrawn. He might also become more determined to defeat Voldemort, spending all his spare time studying dark magic defenses.

One plot twist could be that the maze reveals different illusions for each contestant based on their deepest fears. For example, Harry could see Voldemort killing his friends instead of the normal obstacles. Another could be that the cup at the end is a fake and leads to a more dangerous trial. Or perhaps one of the other champions teams up with a dark wizard within the maze to try and eliminate Harry.

It could be Luna Lovegood. She has a unique perspective on magic. In the final battle fanfiction, she might use her strange but effective magical items and her unorthodox thinking to outwit Voldemort. For example, she could use some of her Lovegood family's special magical artifacts to create a shield or a trap for the Dark Lord.

A young dragon tamer from a far - off land could be an interesting addition. This character could have a deep understanding of dragons and offer Harry some advice on how to approach the task. Maybe they have a special bond with one of the dragons in the task and can communicate with it, which could add an unexpected twist to the story.

Harry Potter himself is often a central character in these fanfictions. Since he was the one who originally faced the dragon task in the Triwizard Tournament, many fanfic authors like to explore different scenarios with him in the same situation.

In many fanfictions, Harry's view of Dumbledore could shift. After the third task, he might start to question Dumbledore's actions and motives more. He might wonder why Dumbledore didn't protect him better or why he seems to be keeping so many secrets. This could lead to some tension between them. At the same time, Harry's relationships with the other houses could improve. Gryffindor already admires him, but now Ravenclaw might seek his knowledge about the Dark Arts, and Hufflepuff could respect his courage. This could make him more of a unifying figure at Hogwarts, despite the Slytherin opposition.

A little mouse in the maze could be her unexpected ally. It might know all the secret passages and hidden corners of the maze and could lead her to safety or important clues.

If Harry were a Dragon Animagus in the First Task, it would change the whole dynamic. He could use his dragon form to create a diversion. For example, he could make the real dragon chase him away from the egg, and then quickly transform back and snatch the egg. Also, his dragon form might have some special abilities like breathing fire in a controlled way to fend off the real dragon if it attacks.

Well, it could be about Harry suddenly finding out he has some sort of lordship that was previously unknown. Maybe it's related to an old wizarding family. He might have to deal with new responsibilities, like managing estates or dealing with family secrets.

Often, original characters are added. For example, a new student who has some special ability related to water or swimming. They might befriend Harry and help him in the second task, either knowingly or unknowingly.