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.
One idea could be a crossover where Pokémon trainers enter a Beyblade tournament. They use their Pokémon's unique abilities to enhance their Beyblades. For example, a Pikachu could use its electricity to power up the spin of the Beyblade. Another idea is a world where Pokémon and Beyblades co - exist, and a group of friends must use both to defeat an evil organization that wants to control both. A third idea could be a Pokémon that has the ability to transform into a Beyblade.
Ash Ketchum from Pokémon would be really interesting. Imagine him trying to understand the mechanics of Beyblades. He could use his Pokémon - training skills to come up with unique strategies for Beyblade battles. Another great character could be Kai from Beyblade. If he were to enter the Pokémon world, he could use his intense determination in Pokémon battles. And of course, a new character, like a trainer who has a special bond with both Pokémon and Beyblades, could also be a great addition to the story.
A really interesting fanfiction could revolve around Ash being challenged to a Beyblade battle by a new rival who has a special Beyblade that has some sort of connection to Pokemon. Ash has to figure out how to use his Pokemon knowledge and his own quick thinking to compete in this strange new type of battle. This could lead to a series of events where Ash discovers new aspects of both Pokemon and Beyblade.
In fanfic, it really depends on the writer's preference. However, some Pokemon that are introduced later in the series, like those in Pokemon Gold, might be more popular as they are often seen as more unique or powerful. For example, Togepi is a Pokemon introduced in Gold and it has a cute appearance and interesting abilities, which makes it a popular choice in fanfic.
One exciting plot could be Ash getting a special Beyblade that has powers related to Pokemon. For example, it might be able to call upon the strength of Pikachu's electricity to boost its spin. Another plot could involve Ash traveling to a world where Pokemon and Beyblade battles are combined, and he has to learn new strategies to compete. A third plot might be that Ash discovers a rare Pokemon that can transform into a Beyblade, and he has to protect it from villains who want to use its power for evil.
One idea could be that Pokemon trainers start using Beyblades in their battles instead of Pokemon. For example, Pikachu could be represented as a Pikachu - themed Beyblade with electric attacks. Another plot could involve a villain who wants to use the power of both Pokemon and Beyblades to take over the world. They might create hybrid Pokemon - Beyblade creatures that are extremely powerful.
Start by making an outline. Decide on the main events, like Ash meeting the main Beyblade characters. Then, write detailed descriptions of the settings, whether it's a Pokemon forest or a Beyblade arena. When it comes to dialogue, make it true to the characters. Ash should talk with his usual enthusiasm, and the Beyblade characters should have their own distinct voices. Keep in mind the pacing of the story, not too slow or too fast. Add some twists and turns, like a Pokemon suddenly evolving during a crucial Beyblade - Pokemon combined battle, to keep the readers engaged.
Ash Ketchum would be a must - include. Imagine him using his knowledge of Pokemon to master Beyblade battles. Also, Gary Oak could be his rival in this new form of combat. From the Beyblade side, Tyson could be an interesting addition. He could bring his Beyblade skills and learn about Pokemon. And of course, Pikachu as a character - like presence in the form of a Pikachu - themed Beyblade would be really cool.
The Pokémon used in this fanfiction's battles would be crucial. Ash has a diverse team with different types, which he could use to his advantage. For example, his Fire - type Pokémon could be used to counter Volkner's Electric - type when they have a type advantage. Also, the setting of the battles could play a role. If it's in a stadium with certain environmental factors, it could change the outcome of the battles.