Begin with Ash's character. Consider his growth and development throughout the Pokemon series. You could write about a time when Ash has to face his biggest fears in a new Pokemon world. It could be a world where the rules of Pokemon battles are different, forcing him to adapt in new ways.
Another cool new partner for Ash in fanfiction could be Riolu. Riolu is strong and has the ability to sense auras. It could learn a lot from Ash and Pikachu and grow into a powerful Lucario. This would give Ash a Pokémon with great combat skills and a unique ability that could help in battles and in understanding other Pokémon's emotions.
A great Ash new Pokemon fanfiction often has a unique plot. For example, Ash could be transported to a parallel Pokemon universe where he has to learn new battle strategies. Good character development is also key. Show how Ash changes and grows in response to new challenges.
Some fanfictions might show Ash becoming a sort of honorary Pokemon Ranger. He would then have to balance his duties as a Trainer and as a Ranger. This could create internal conflict for him as he tries to decide which role is more important at different times. His friends from the Pokemon journey, like Brock and Misty, could also be involved, adding more layers to the story.
Well, Ash is no stranger to adapting to new situations. In these fanfictions, he first tries to understand the basic principles of how Beyblade and Pokemon can work together. He might study the different types of Beyblade parts and how they can interact with the abilities of his Pokemon. He also asks for advice from other more experienced trainers. Once he has a basic understanding, he starts training his Pokemon to work in harmony with the Beyblade elements. He practices new battle strategies that incorporate both Pokemon moves and Beyblade spins. He also has to learn how to handle the new equipment, like how to launch a Beyblade in a way that complements his Pokemon's attacks. In addition, he builds relationships with his Pokemon in a new way, as they now have to cooperate in a different kind of battle environment.
There could be a new rival for Ash. This rival might have a very different approach to Pokemon training, like focusing more on the beauty and grace of Pokemon rather than just battle strength.
It could be a young girl named Lily who has just started her Pokemon journey. She has a Pikachu - like Pokemon but doesn't know how to train it properly. Ash steps in and shows her the ropes, like how to train it to use electric attacks more effectively.
Potential characters might include a new group of Pokémon thieves that Ash has to deal with. Also, there could be a local Pokémon healer who becomes an important part of the story. There might be some young Pokémon enthusiasts who look up to Ash and join him on his adventures. Another possibility is a reclusive Pokémon trainer who has some rare Pokémon and Ash tries to learn from them.
It could be his rivals. For instance, Tracey or Paul might see Ash's potential in the new region as a threat and decide to betray him. They could try to sabotage his battles by giving false tips to his opponents or stealing his battle strategies.
It could be a very new and interesting concept. Think about it. If Ash is secretly a Pokemon fanfiction, it could mean that his entire journey, his relationships with his Pokemon and friends, are all part of a fictional narrative within the Pokemon world. This could potentially lead to some really cool plot twists. For example, what if he discovers that he's a fanfiction? How would he react? And it could also make fans question the nature of the Pokemon world itself. Is it all a story within a story? This concept has the potential to really shake up the fan community and inspire a lot of new fan - created content.