Well, if Ash were to turn into Mew in a fanfiction, it would be quite a wild turn of events. Mew is known for its ability to transform and its vast psychic capabilities. Ash, with his new form, could potentially travel to different dimensions that were previously inaccessible. He could also communicate with Pokémon in a whole new way, using Mew's psychic powers to understand their deepest thoughts and feelings.
Well, perhaps Ash could be transformed into a Mew through some magical encounter. He might then use his new form to explore the Pokémon world in ways he couldn't before, like flying high above the clouds and seeing the landscapes from a whole new perspective.
There are indeed some. In these fanfictions, Mew might be portrayed as a special Pokemon that has a deep bond with Ash. It could be in a way where Mew helps Ash in his Pokemon journey in unexpected ways. For example, Mew might use its psychic powers to communicate with Ash's other Pokemon to make them stronger or understand Ash better. Some fanfictions also create a backstory for how Mew and Ash first met, which can be really interesting to read.
Maybe a powerful and envious Mewtwo could be the antagonist. Since Ash has now become a Mew, Mewtwo might feel threatened or think that Ash doesn't deserve such power. So, Mewtwo could try to fight Ash to prove his own superiority.
Well, it depends on personal taste. Some people might like it because it offers a unique take on the Pokemon universe, with Ash having such an extraordinary origin. It can bring in new and exciting plotlines that deviate from the regular Pokemon storylines.
One consequence could be that Ash loses his human identity to some extent. His friends might not recognize him at first, and he would have to figure out how to communicate that he is still Ash inside. Also, his Pokémon might be confused about their trainer's new form.
Well, in this kind of fanfiction, the idea of Ash being betrayed in the context of having a Mew as a mate is quite an interesting concept. It might involve a plot where Ash's friends or some other characters turn against him because of his relationship with Mew. Maybe they see it as something abnormal or dangerous.
One common theme is friendship. Mew and Ash form a special bond that helps Ash in his Pokemon - training. Another theme is adventure, as Mew might lead Ash to new and exciting places.
Character development is key. Ash might grow in his understanding of Pokemon and become more empathetic. Mew could also develop its own character arc, perhaps learning more about the human world through Ash. Additionally, a good fanfic in this regard would have vivid descriptions of the Pokemon world, making the reader feel like they are right there with Ash and Mew.
Often, it starts with Ash being in awe of Mew's rarity and power. Mew, seeing Ash's pure heart, decides to approach him. Then they start to trust each other more as they face challenges together, like saving a group of Pokemon from a natural disaster.