Maybe one of the previous champions who has retired but comes back for this 'champion of champions' event for some personal reason. For instance, they might want to prove that they are still the best or they are on a quest to find a worthy successor. They have a lot of experience and skills, but also face new challenges as the competition has evolved since they were last active.
It could be an underdog trainer who has been training hard in the shadows and finally gets the chance to participate in this exclusive event.
Maybe an underdog trainer who has been training in secret and decides to enter the 'champion of champions' competition to prove themselves. This character could have a unique bond with their Pokemon that gives them an edge in battles.
The plot might involve a young trainer who idolizes the champions and somehow gets involved in the 'champion of champions' event. They could learn a great deal from the champions and even face off against them in some unexpected situations. For example, the young trainer might discover a new battle strategy while watching the champions battle and then use it to their advantage when they have to fight. There could also be some sort of mystery or hidden agenda among the champions, like someone is trying to disrupt the event for their own gain, and the young trainer has to help stop it.
The main character could also be a local Alola resident who has a special connection with the land and its pokemon. They grow up hearing stories about the champion and dream of one day achieving that status. Their understanding of the local environment and pokemon gives them an edge in their journey to become the Alola champion.
It could be a new trainer who just started their journey and is determined to make a name for themselves in the Champion League. For example, a young girl from Pallet Town who has big dreams.
In a 'pokemon champion of champions fanfic', it may revolve around a conspiracy within the Pokemon League. Some might be trying to manipulate the results of this grand tournament. The main character, a determined trainer, has to not only battle strong opponents but also uncover the truth. There could be epic battles in different arenas, with each champion bringing their own signature Pokemon. The fanfic could also explore the backstories of the champions and how they got to where they are, adding depth to the overall story.
A determined young trainer from a small town who has always dreamed of making it big in the Pokemon world could be a main character. He starts with a common Pokemon but through hard work and training, it becomes very powerful. Another could be a mysterious trainer who always wears a cloak and has a team of rare and powerful Pokemon that no one has ever seen before.
Some Pokemon champions start their journey as ordinary trainers. For example, Lance from the Johto region. He had a deep love for Dragon - type Pokemon from a young age. His back story often involves exploring caves to find rare Dragon - type Pokemon and training them hard. This led him to become a very powerful trainer and eventually a champion.
A possible scenario in such a fanfic could be that some Pokemon are being experimented on by an evil organization in a way that their powers are being misused to create chaos on a global scale. This gets the attention of the Avengers. Meanwhile, the Pokemon Champions are also on the hunt for this organization. They cross paths and realize they need each other. The Avengers are impressed by the bond between the Champions and their Pokemon, and the Champions are in awe of the Avengers' high - tech equipment and superhuman abilities. Together, they form an unlikely but powerful alliance to take down the bad guys.
The main character could be a young and fearless fighter named Kai. He has been training all his life for the 'game of champions' and has a natural talent for combat. He is determined to prove himself and win the championship.
In addition to the well - known champions, there could be some new or lesser - known champions. Maybe a champion from a newly discovered region that has unique Pokemon. They would bring in a fresh perspective and different training methods. Also, some retired champions might come back to help the current ones. They could have a wealth of experience and wisdom that the younger champions lack. These characters would all interact, share their stories, and work together towards a common goal in the fanfic.