Well, it might be that in this fanfiction, Ash is exploring a new and dangerous area in the Pokemon world. He encounters some strange phenomena or powerful wild Pokemon. There could be a situation where he is poisoned or affected by some negative energy. His body can't handle it and he collapses. His friends or Pokemon then have to search for a cure or a way to revive him, which could be the main focus of the story.
Obviously, Ash would be the main character since he's the one collapsing. His Pikachu would most likely be a key character as well. Pikachu is always by Ash's side and would probably be very concerned and try to help when Ash collapses.
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, in some cases of 'pokemon ash forgotten fanfiction', it could be that Ash gets sent to a different dimension where no one remembers him. He then has to find a way to make people remember and also deal with the new and often hostile environment. He might start from scratch, trying to regain his Pokemon and his status as a trainer all while facing challenges that are unique to this forgotten state.
In such a fanfiction, perhaps Ash could be betrayed by his friends in Alola. Maybe they misunderstand his actions or are influenced by some false information. For example, they might think Ash is secretly working for an enemy, which leads to the betrayal.
Well, the plot could involve Ash visiting a dairy farm where there are many Miltank. One particular Miltank is very shy and doesn't produce milk like the others. Ash decides to help it gain confidence. He uses his knowledge of Pokemon and training methods. He spends time with the Miltank, shows it kindness, and eventually, the Miltank overcomes its shyness and becomes one of the best milk - producing Miltank on the farm. This story could also include Ash learning about the importance of different types of Pokemon in different industries, like the dairy industry in the Pokemon world.
Well, it could be about Ash experimenting with new battle strategies. For example, he might try to combine different Pokemon moves in unexpected ways. Maybe he'd experiment with training his Pokemon in unique environments like a mysterious forest filled with rare Pokemon. This could lead to his Pokemon evolving in new and exciting ways, and he could discover new Pokemon abilities along the way.
A possible plot could be that Ash discovers a rare male Pokemon that has unique powers. He decides to catch it and train it. Along the way, he faces other trainers who also want this Pokemon. This leads to intense battles and strategic planning on Ash's part to keep his new male Pokemon friend safe and to help it reach its full potential.
I'm not sure specifically as there could be many different versions of this fanfiction. But generally, it might involve Ash and May going on adventures through time, perhaps encountering different Pokemon species from various eras, facing challenges related to time - like fixing time - rifts or something.
Well, it could be that Ash finally realizes his deep feelings for Serena during a grand Pokemon event. Maybe they are in a beautiful, flower - filled meadow near a Pokemon Center, and Ash gets down on one knee with a Pokemon - themed ring, perhaps made from a shiny Pokemon scale or something unique.
One possible plot could be that Ash and Rukia are somehow transported to a new dimension where they have to work together to find a way back home. Along the way, Ash's Pokemon skills and Rukia's Soul Reaper abilities complement each other in battles against strange new foes.