Well, Ash could face some really tough opponents. Maybe he'll have to use some new strategies that he's been secretly working on. And his Pokémon might evolve during the competition to give him an edge.
Ash might encounter some legendary Pokémon during the Champion League in the fanfiction. This could be either as a part of a special challenge or as an unexpected encounter on the way to a battle. His Pikachu could play a crucial role as always. There might be some plot twists like a new rule being introduced mid - tournament that changes the whole dynamic. And Ash's growth as a trainer, both in terms of skills and maturity, would be a central theme as he competes in this prestigious league.
In this fanfiction, Ash might form unexpected alliances with other trainers. These alliances could be based on mutual respect or a shared goal of taking down a particularly strong competitor. Also, there could be some emotional moments where Ash has to overcome self - doubt. Since the Champion League is a high - stakes competition, the pressure on Ash would be enormous. But with his determination and the bond he has with his Pokémon, he could still manage to shine.
Perhaps there's a dark - horse candidate, a relatively unknown trainer who has been quietly training and is now ready to take on Ash in the Champion League. This trainer could have some unorthodox training methods that make their Pokémon very difficult to defeat. And then there are always the regular tough competitors that Ash has faced in previous leagues, some of whom might also be in the Champion League in this fanfiction.
Ash might have a rematch with a previous tough opponent in the Alola League and finally defeat them. His Pokémon's teamwork could be the key factor. For instance, his Alola team could combine their moves in a unique way to overpower the foe.
Ash might gain more recognition. In the Pokemon world, winning a league is a big deal. So, he could be invited to exclusive Pokemon events. For instance, he could be asked to give a speech at a Pokemon training seminar.
Well, in an 'ash unknown champion' fanfiction, the plot might involve Ash getting lost in a mysterious region. There, he stumbles upon an unknown champion who is facing some sort of problem, like a group of poachers targeting their rare Pokémon. Ash decides to help the champion, and in the process, they exchange their Pokémon training techniques. As they work together, Ash realizes that there are so many new ways to approach Pokémon battles that he hadn't known before.
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.
The plot could involve Ash facing his toughest rivals from all the regions he has visited. He might have to overcome personal doubts and insecurities along the way. His Pokémon team could gain new powers or evolve at crucial moments. For example, his Charizard could return and play a key role in a battle. The final battle could be against a mysterious and powerful trainer who has a unique set of Pokémon. Ash would need to use all his experience and knowledge to win.
In an 'ash is apprentice of champion' fanfiction, the plot might begin with Ash's normal journey being interrupted when a champion approaches him. The champion could be from a far - off region with different Pokémon and battle tactics. Ash would be immersed in this new world of training. He'd have to learn how to control his Pokémon in ways he hadn't thought of before. There could be a tournament or a big battle event where Ash has to prove himself as the champion's apprentice. And as he progresses, he might start to develop his own unique brand of training and battling that combines what he learned from the champion with his own experiences, all while forging a deep friendship with the champion.
In an Ash betrayed champion fanfiction, perhaps the champion has been secretly working with a villainous group. The champion lures Ash into a trap under the pretense of a friendly battle. Ash, being trusting, falls for it. He then has to find a way to escape and get revenge. He might meet some new allies along the way who help him see the champion's real motives.
Maybe Team Rocket. They've been after Ash for a long time. If Ash comes back as a champion, they might see it as a threat and betray him in some way. They could pretend to be his friends at first and then stab him in the back to get what they want, like his powerful Pokémon or his championship title.
A fellow trainer in Alola could betray Ash. This trainer might be envious of Ash's success as a champion. He could secretly work with Team Skull or some other antagonists to undermine Ash. For instance, he might give false information to Ash about a battle location, leading Ash into a trap.