The fanfiction could involve Ash's transformation into a Vulpix being part of a grander plan. Perhaps there is a powerful entity that wants Ash to experience life as a Pokémon to teach him a valuable lesson. As a Vulpix, Ash would have to face challenges like finding food, shelter, and dealing with predators. His relationship with his Pokémon would also change. Pikachu would be more protective, and they would communicate in different ways. Ash might also discover secrets about the Pokémon world that were hidden from him when he was human, and these secrets could play a crucial role in his future adventures once he is back to his normal self.
In this fanfiction, when Ash turns into a Vulpix, he might find that he has a stronger connection to the fire - type Pokémon. He could be drawn to places with high heat or areas where other fire - type Pokémon gather. His transformation could also lead to a better understanding of Pokémon evolution, as he experiences a different form of existence. His friends would search for a way to change him back, and during this time, Ash would have to avoid being captured by other trainers who might mistake him for a regular Vulpix.
Maybe Ash as a Vulpix gets adopted by a group of wild Vulpix. He has to learn their ways and how to survive in the wild. He could also learn some unique Vulpix - only skills that he can later use when he turns back to his human form.
In a fanfiction where Ash turns into a Vulpix, it could start with Ash exploring an ancient and forbidden area. There, he disturbs an old relic or power source that causes the transformation. As a Vulpix, he discovers that he has new abilities such as being able to use Ember and Quick Attack in a more instinctive way. His friends, like Misty and Brock, would be shocked but would quickly try to find a way to reverse the transformation. Meanwhile, Ash in his Vulpix form might make new Pokémon friends who are initially wary but then accept him as one of their own, leading to some interesting adventures in the Pokémon world.
Ash could have a hard time adjusting to his new Pichu form. He's used to being a human trainer, but now he has to deal with being a small, electric - type Pokémon. He might accidentally shock his friends at first because he doesn't have full control over his new powers. For example, when he tries to communicate with Pikachu, he might send out a jolt of electricity instead of making a sound.
In fanfiction where Ash turns into a Pokemon, there are numerous possibilities. One is that he could form a deeper bond with other Pokemon. Since he is now one of them, they might trust him more instinctively. He could also be hunted by some trainers who see him as a rare or powerful Pokemon. This would put him in a difficult situation where he has to avoid capture while still trying to live as a Pokemon. And his old friends like Pikachu might have a hard time adjusting to this new Ash - Pokemon hybrid existence.
Well, if Ash turns into a legendary Pokemon, he'd likely gain a whole new set of powers. For example, if he becomes Arceus, he'd have the power to create and shape the Pokemon world. He could create new Pokemon species or even reshape the existing regions. His friends would probably be both in awe and a bit scared at first. But Ash, being Ash, would still have his kind heart and would use his powers for good.
Well, perhaps Ash could gain new and amazing powers. Shiny pokemon often have special abilities or appearances, so if Ash turns into one, he might be able to fly like a shiny bird - type pokemon or have super strength like a shiny fighting - type. He could also use his new form to communicate better with pokemon, since he'd be more like them.
Perhaps Ash, as a Victini, would attract a lot of attention from other Pokémon and trainers. Some might see him as a symbol of hope and victory, while others could be jealous or even try to capture him for his powers. His friends, like Pikachu, might be initially confused but would eventually learn to accept this new form of Ash and help him navigate the challenges that come with being a Victini.
Well, he might start to see the world from a Pokemon's perspective. For example, he could understand their communication better and form closer bonds with them. He may also face new challenges like having to adapt to living in a Pokeball or dealing with the natural instincts of his new Pokemon form.
If Team Rocket turns Ash into a Pokemon, his relationship with his old Pokemon would change. His Pokemon might not recognize him at first. But as they sense his familiar spirit, they could try to protect him. And Ash, in his new form, could learn a lot about the true nature of Pokemon. He could discover secrets about their evolution, abilities, and the hidden powers within them that he never knew as a human trainer.
In a Pokemon Ash turns evil fanfiction, he might start using his Pokemon for wrong purposes. For example, instead of battling for sport and friendship, he could use them to steal from other trainers or take over Pokemon Centers. His Pikachu, usually so loyal, might be conflicted about following his new, evil ways.
A lot could change. His fashion sense might be completely different. Instead of his usual cap and jacket, he could be wearing more feminine outfits. His Pokémon might need to get used to this new look too. Pikachu might be a bit confused at first but then adapt. Also, Ash's rivals might not take him as seriously at first when he's a girl, but he could prove them wrong with his skills.