Who could be the possible character as the other champion in 'Harry Potter and the Other Champion' fanfiction?

The main character could be a young Gringotts trainee who has always been overlooked but has a hidden talent for magic related to the vaults. Maybe they can sense the magical auras of different vaults and their contents, which is a rare ability. This character gets chosen as the champion unexpectedly and has to rise to the challenges that come their way, learning about their own power and the secrets of Gringotts along the way.

It could be Neville Longbottom. He has the potential to be a supreme champion. He grew a lot throughout the series, and in fanfiction, he could be given more opportunities to shine and show his true power and skills, becoming the supreme champion.

Hermione Granger is another potential main character. Her intelligence and quick thinking would be invaluable in any competition or quest in the fanfiction. She could be the strategist behind the 'champion's champion', guiding them with her vast knowledge of magic and spells.

It might also be a character who was overlooked because of their appearance or social status. They could be a Hufflepuff student, for instance, who is often underestimated but has a great deal of hidden potential. This student could have a special connection to an ancient magic that makes them a worthy fourth champion.

In the 'Harry Potter and the Other Champion' fanfiction, an exciting plot point could be the relationship between the champions and the Hogwarts students. The other champion might be initially shunned or overly idolized by the students, which affects how they perform in the tasks. Also, the tasks themselves could be modified to include elements that test the champions' ability to work together, leading to some unexpected alliances and betrayals among them.

A possible plotline could be the Durmstrang champion being an undercover agent for a dark wizard. They enter the Triwizard Tournament as a way to gain access to Hogwarts and carry out a secret mission. But as they spend time at Hogwarts, they start to question their loyalty to the dark side.

A wizard from a small and unknown magical family could be an underdog. They don't have the resources or the big - name connections like the students from the major wizarding families. But they might have a unique style of dueling or a special spell that gives them an edge, and they fight their way through the championship against all odds.

One possibility could be a group of dark wizards who are jealous of Hogwarts' power and reputation. They want to bring it down and Harry, as the champion, stands in their way. Another could be a former Hogwarts student who turned to the dark side and has a vendetta against the school for some reason. They target Harry specifically because he represents everything good about Hogwarts.

It could be Voldemort again, but in a more powerful and death - centered form. Maybe he has found a way to fully embrace the power of death and become an even greater threat. Since Harry is the champion of death, it would be a battle of two opposing forces related to death.

The unknown champion could be a reclusive hermit - like character who has been living in seclusion in a forest. They have trained their Pokémon in harmony with nature and have a very different approach compared to the more mainstream trainers. Maybe they are an old - timer who has seen different eras of Pokémon training.