Maybe it's a legendary Pokemon in disguise. In some fanfictions, legendary Pokemon often play important roles. It could give Ash the egg as a test or because it senses that Ash has a pure heart. Another possibility is that it could be a young trainer who can't take care of the egg anymore and trusts Ash to do a good job.
Well, in the Pokemon anime, Ash and Misty's relationship is quite complex. They often bicker like typical rivals but also show deep care for each other. For example, Misty is always there to support Ash during his battles, and Ash respects Misty's skills as a water - type Pokemon trainer. There are many moments where their connection seems to be more than just friendship, which can be seen as the basis for a potential love story.
In this fanfiction, if Ash turns into a pokemon, perhaps he becomes a Charmander. He could struggle with being in a different form. He might have to adapt to the life of a fire - type pokemon, facing challenges like being weak against water - type attacks and trying to find a way to change back while still having adventures with his friends, who now have to protect him in a different way.
Well, one idea in Pokemon fanfiction for making Ash smart and powerful is to give him a mentor who teaches him advanced Pokemon training techniques. This mentor could be an old and wise trainer or even a legendary Pokemon in disguise. And he could also gain power from ancient artifacts related to Pokemon in the fanfiction world.
One idea could be a fanfiction where a girl joins Ash on his journey. She might have a unique Pokemon that helps Ash in a difficult battle. For example, she could have a psychic - type Pokemon that can sense the opponents' next moves and help Ash strategize better.
In some fanfictions, the girl's clothes are related to her Pokemon evolution journey. Maybe when her starter Pokemon evolves, she gets a new set of clothes that symbolizes their growth together. It could be a more elaborate and powerful - looking outfit. Also, there are often stories where she dresses up to impress Ash or to show her confidence during a difficult battle. This could involve a flashy, battle - ready costume with bright colors and strong - looking boots.
Maybe a powerful and evil pokemon trainer who has a vendetta against Ash. Now that Ash is in a vulnerable pokemon form, this trainer could try to capture and control him. The trainer might have some dark motives related to using Ash's unique situation to gain power in the pokemon world.
One great Pokemon Ash older fanfiction is 'The Journeys Beyond'. It shows Ash in a more mature and complex world of Pokemon battles. Another one could be 'Ash's Ascent' which focuses on his growth as a trainer in his later years. And 'Mature Ash' is also quite interesting as it delves into how Ash's experiences over time have changed his approach to Pokemon training.