A great 'Ash becomes Kalos Champion' fanfiction would have a strong sense of progression. Ash should start at a certain level and gradually become more powerful as he overcomes various obstacles in Kalos. The fanfiction could also explore the backstories of his Pokémon in more detail, like how they came to be with Ash and what their own goals are. Additionally, the way Ash interacts with the local Pokémon and trainers in Kalos can add depth and authenticity to the story.
One likely betrayer could be Serena. Maybe she has some hidden motives that are revealed when Ash becomes champion. For example, she might be jealous of his success and the attention he gets as champion, and so she betrays him.
One possible plot could be that Ash's so - called friends in the Kalos region turn on him out of jealousy. Maybe they can't handle the fact that he has become the champion. They start spreading false rumors about him, which makes the public turn against Ash. This betrayal could lead Ash to question his own journey and the relationships he has formed.
One possible fanfic could be about Ash's journey to become the Kalos champion. It might start with his arrival in Kalos, full of excitement and determination. He meets new Pokémon and friends along the way. His battles are intense, with him using unique strategies to defeat his opponents and gradually climb the ranks to the championship.
One possible scenario in this fanfiction could be that Ash has to overcome his toughest opponents yet in Unova. He might face trainers with unique and powerful Pokémon that he has never encountered before. His Pikachu would surely play a crucial role, using its speed and electric attacks to outwit opponents.
One key element is the battles. Since it's about Ash as the Kalos champion, the battles need to be exciting and well - described. His Pokémon's moves, the strategies he uses, and the reactions of the opponents are all important. Another element is the relationships. His friendship with his Pokémon, his human friends in Kalos like Serena, Clemont, and Bonnie. And also his relationship with the Kalos region itself, how he explores and falls in love with the place.
It could be a local Kalos trainer who has been training specifically to become the Kalos champion for years. This trainer might have a team of rare and powerful Kalos Pokémon and a very strategic battle style. He or she could see Ash as an outsider and a threat to their long - held dream of being the champion.
One idea could be Ash facing a new, extremely powerful and mysterious Pokémon in the Kalos region that no one has ever seen before. This Pokémon could be the key to a hidden power within the Kalos champion title. Another plot could involve Ash having to team up with a former rival from his past travels to overcome a threat to the Kalos Pokémon ecosystem. Maybe there's a dark organization trying to disrupt the balance, and Ash's unique bond with his Pokémon is what's needed to stop them.
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.
One possible plotline could be Ash facing off against his toughest opponents in Kalos. He might have to battle against the Elite Four, each with their unique Pokémon and battle styles. Another aspect could be his relationship with his Pokémon evolving, like Pikachu learning a new powerful move just for these crucial battles. And of course, his friendship with his Kalos - based friends like Serena could play a big role, with them cheering him on and providing support in different ways.