Well, a cool plot might be that Ash shapeshifts into different Pokemon to understand them better. He could shift into a Pikachu and experience the world from Pikachu's perspective. This would not only help him in battles but also in forming stronger bonds with his Pokemon. Or, perhaps he shapeshifts into a legendary Pokemon and has to deal with the responsibilities and expectations that come with being such a powerful being.
One plot idea could be Ash getting the ability to shapeshift accidentally. For example, he touches a strange Pokemon or an ancient artifact. Then he has to figure out how to control this new power while on his journey to become a Pokemon master. Another idea is that an evil organization wants to use Ash's shapeshifting ability for their own nefarious purposes, so he has to avoid them and protect his friends.
One idea could be a pokemon shapeshifter that is trying to hide its true form in a human - dominated city. It has to constantly adapt and learn human behaviors to avoid detection.
One idea could be a Pokemon that can shapeshift into different legendary Pokemon to gain their powers. For example, it could shift into Mew to use its psychic abilities in unique ways. Another idea is a shapeshifting Pokemon that disguises itself as other common Pokemon to play pranks on trainers. It could be really fun to write about the chaos it causes.
A possible plot is that Ash is separated from his friends during a powerful storm. Alone, he stumbles upon an ancient Pokemon ruin. He then has to decipher the secrets within the ruin with the help of his Pokemon, all while trying to reunite with his friends. He might learn some long - forgotten Pokemon training techniques in the process.
One idea could be that Ash mentors a young trainer who is afraid of Pokemon battles. Ash uses his own experiences to show the kid how to overcome fear and build a bond with their Pokemon. For example, he might share how he was once scared of facing strong opponents like Brock in his early days but learned to trust in Pikachu's abilities.
A possible plot for a Pokemon Ash and Arceus fanfiction could be that Ash is summoned by Arceus to a sacred place. There, Arceus reveals that Ash has been chosen to help balance the powers of all the different types of Pokemon in the world. This would involve Ash traveling to different regions and facing challenges related to each type of Pokemon. For example, in a region dominated by fire - type Pokemon, he might have to find a way to cool things down without harming the Pokemon. Another plot could be that Ash accidentally angers Arceus, and as a punishment, he has to go on a journey to prove his worth and respect for all Pokemon. He has to complete tasks like helping a group of endangered Pokemon species thrive again. And, a third plot idea is that Arceus gives Ash the ability to transform into different Pokemon forms for a short time to better understand them, and Ash uses this power to solve various problems in the Pokemon world.
One plot idea could be that Ash and Giselle team up to explore a new, mysterious region filled with never - before - seen Pokemon. They encounter various challenges along the way, like difficult terrains and strong wild Pokemon. Another idea is that Giselle has a special ability that only Ash can help her control, and together they use it to save a Pokemon sanctuary from an evil organization. A third idea might be that Ash gets lost in a time - warp and Giselle has to follow him into the past or future to bring him back, all while facing different versions of Pokemon from different eras.
One interesting plot idea could be Ash and Misty getting lost in a mysterious new region that has unique Pokemon. They have to work together to survive and find their way out, all while discovering new Pokemon species and their behaviors. Another could be a story where they participate in a high - stakes Pokemon tournament together, facing off against tough opponents and strengthening their bond as friends and partners in the process. And perhaps a plot where Misty discovers a rare and powerful water - type Pokemon and Ash helps her train it, leading to a deeper understanding of each other's goals and dreams.
Maybe there's a fanfiction where Angie and Ash get transported to a parallel Pokemon universe. In this universe, the roles of trainers and Pokemon are reversed, and they have to adapt to this strange new world while also finding a way back to their own. This could lead to some really fun and unique interactions between them and the Pokemon they meet there.
Another plot could be that Ash is actually half - Pokemon from a long - lost experiment. As he starts to show more Pokemon - like abilities, he has to deal with people's reactions. Some might fear him, while others see him as a new hope for the relationship between humans and Pokemon. He then embarks on a journey to find out the truth about his origin and how he can use his unique nature for good.
One idea could be Ash and Burgundy teaming up for a special Pokemon tournament. They start off as rivals but gradually learn to respect each other's skills and form an unexpected friendship. This could involve them training together and sharing their unique training methods.