In some fanfiction, 'ash' could be a character or an element. If 'ash' is a character, they might control certain magical powers or technologies, which could drive the plot forward. For example, if it's a fantasy fanfic, Ash could control the power of elemental ash to fight against evil forces.
You can make Ash a central character with unique control abilities. For example, Ash can control the movement of ash particles to create illusions or barriers. This would add an interesting dynamic to the story.
In this fanfiction, it might be that Latias controls Ash as part of an experiment. Latias is a curious Pokémon and wants to see how a human like Ash would react in different scenarios. So she uses her powers to make Ash explore areas he might not have otherwise, like a hidden and mysterious part of the Pokémon world. This could lead to Ash discovering new Pokémon species or even new types of Poké Balls. As he's being controlled, his initial fear turns into a sense of adventure as he experiences things he never thought possible.
The primary characters are Latias and Ash. But we can't forget about Misty and Brock if we consider the wider Pokémon universe. They might show up in the fanfiction, worried about Ash when they see his unusual actions under Latias's control. Also, there could be local Pokémon in the areas where the story takes place that interact with Ash while he's being controlled. These interactions could be either friendly or hostile, depending on the nature of the Pokémon and how they perceive Ash's strange behavior.
One possible fanfiction could be about Ash's adventures in Hoenn during the month of May. Maybe he discovers a new Pokémon species that is only active during this time of the year. He could be traveling with his usual companions and facing challenges specific to the Hoenn region.
If Ash controls minds in the Pokémon fanfiction, it could lead to him being ostracized by other trainers. In the Pokémon world, such unethical behavior would not be tolerated. Other trainers might see him as a threat and try to stop him. This could create a lot of conflict in the story, with Ash having to either defend his actions or try to reverse the mind - control ability he has acquired.
It could be a rival trainer. Rival trainers are often very competitive in the Pokémon world. Maybe this rival is jealous of Ash and May's progress and decides to betray them to slow them down. They might spread false rumors about Ash and May, causing other trainers to be distrustful of them.
Often, these fanfictions will take the characters out of their normal settings. For example, they might end up in a different time period or a strange new land. This allows for a lot of creativity in the storylines. And the character development of May and Ash is usually a big part of it, showing how they grow and change throughout the story.
Yes, there might be. Fanfiction covers a wide range of scenarios and relationships, so it's possible that someone has written a story where May cheats on Ash. You can try searching on popular fanfiction websites.
A possible fanfiction plot could be that Ash, Serena, and May are invited to a mysterious island full of unknown Pokemon. They have to work together to survive and discover the secrets of the island. Ash's leadership, Serena's ability to communicate with Pokemon, and May's quick decision - making skills would be crucial.