One idea could be that Ash discovers a hidden power within himself related to water types. Maybe he has a special connection with a rare water - type Pokemon that helps him unlock this new ability. For example, he meets a mythical water - type Pokemon in a hidden cave. The Pokemon sees Ash's pure heart and decides to bond with him, allowing him to control water in ways he never thought possible.
Perhaps Ash is magically transformed into a water - type Pokemon for a short period. During this time, he experiences the world from a water - type's perspective. This gives him unique insights into their abilities and how to use them effectively. When he transforms back, he combines his human strategic thinking with his new - found water - type knowledge to become a water master in his own right.
In a fanfiction, Ash could become a water master by training intensively with his existing water - type Pokemon like Squirtle and Totodile. He might go on a journey to a water - type Pokemon sanctuary where he learns ancient water - type battle techniques from the wise elders there. This would not only make him a water master but also give him a deeper understanding of the water - type Pokemon's nature.
In fanfiction, Ash might discover a special water - type stone that enhances his bond with his water - type Pokemon. This stone could have the power to boost their abilities and his own understanding of them. With this new advantage, he enters water - type Pokemon tournaments and gradually builds his reputation as a water master. He also shares his experiences with his friends, who support him in his journey.
One idea could be that Ash discovers a hidden power within himself that allows him to communicate directly with Legendary Pokemon. This power sets him on a journey to understand the secrets of the Legendary Pokemon world. He might start by having an encounter with Mew, who guides him to different places where he can learn more about his new ability.
Ash could be a Pokémon trainer with a different starting point in this fanfiction. Born in 1987, by 1997 he might have already made a name for himself in local Pokémon battles. He could have a team of Pokémon that he rescued from difficult situations, like a Charmander that was abandoned by its trainer. His story could revolve around giving these Pokémon a second chance and proving that Pokémon don't need to be 'perfect' to be strong.
Ash Pokemon Master fanfiction is also appealing because it can bring in crossovers. For instance, Ash could meet characters from other popular anime or game universes. This mash - up of different worlds can create really exciting and unexpected storylines that keep readers hooked.
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 many fanfictions, Ash achieving the status of a Pokemon Master often involves him having extraordinary battles. He might defeat powerful legendary Pokemon that no one has ever tamed before. His Pikachu could evolve into a more powerful form, which gives him an edge in battles. Also, his bond with all his Pokemon, not just Pikachu, becomes so strong that they can execute complex strategies without any communication barriers.
One great thing about Ash Pokemon Master fanfiction is that it allows fans to explore different scenarios for Ash's journey. For example, he could have different Pokemon teams, face new and unique challenges, or form unexpected alliances. It gives a fresh take on the Pokemon universe we all love.
In a fanfiction about Ash's reunion in Alola, perhaps he comes back to help with an ecological problem. The Alola region's unique ecosystem is in danger, and his friends call him for his expertise. Ash brings along some of his other Pokemon from his travels, and together they work to save the day while also having a great time catching up.
Another possibility is Ash becoming Lugia. Lugia is known as the guardian of the seas. As Lugia, Ash could explore the deep oceans, discover new species of Pokemon, and safeguard the marine ecosystem. He could use his psychic and flying abilities to interact with both water - and flying - type Pokemon, bringing a new era of harmony between different Pokemon types.
In this fanfiction, Ash and May could be on separate adventures in Kalos at first. But then, they cross paths when they both get involved in a mystery related to a rare and powerful Pokémon in Kalos. They have to put their heads together, along with their Pokémon, to solve the mystery and protect the Pokémon from those who would use it for bad purposes.