There might also be a legendary Pokémon itself as a main character. Perhaps a legendary that has been exiled from the hall for some reason. It's on a journey to redeem itself and regain its place in the hall. Along the way, it meets other Pokémon and trainers, and they form an unlikely alliance. The story could then be about how this outcast legendary changes the perspectives of those around it and how it overcomes the obstacles to return to the hall.
There could be battles between trainers trying to prove themselves against the legendary Pokémon. Maybe a young trainer stumbles into the hall by accident and has to find their way out while avoiding the wrath of the powerful legendaries.
Legendaries are usually shown as very powerful and having a lot of influence. Regular pokemon are more like the normal inhabitants. For example, a legendary might be able to control the weather in a fanfic, while a regular pokemon like Pikachu is just a cute and energetic electric - type that battles in normal tournaments.
Arceus is often a popular choice. It's the creator Pokemon, so there are a lot of possibilities for stories involving its power and the origin of the Pokemon world. Writers can explore how Arceus interacts with other legendaries and how it maintains the balance of the universe.
One possible plot could be that the powerful pokemon legendaries, feeling that humans have overstepped their bounds in terms of exploiting the pokemon world. So they use their extraordinary powers to enslave humans, forcing them to work in areas like restoring damaged pokemon habitats. This would turn the normal relationship between humans and pokemon upside down.
In fanfic, pokemon legendaries are often depicted as extremely powerful and rare. Regular pokemon are more common. Legendaries might have unique abilities or backstories that are explored more deeply in fanfic, while regular pokemon are usually used in more day - to - day scenarios like battles in local gyms or contests.
One idea could be a fanfic where the legendaries have to work together to stop an ancient evil that is threatening the Pokemon world. This evil could be a powerful dark force that has been awakened and only the combined powers of the legendaries can defeat it.
One idea could be a fanfic where the legendary Pokemon have human-like lives in a secret society. They deal with normal problems like friendship, rivalry, and finding their place in the world, all while hiding their true identities from humans.
Perhaps an elder in a small village. This elder has a deep knowledge of the old legends about pokemon and humans' relationship. When the enslavement begins, the elder uses their wisdom and the respect they have in the community to gather a group of people. They then lead this group in an attempt to understand why the legendaries are doing this and find a way to make peace with them.
Well, it could be about Ash having daily adventures with legendary Pokemon. Maybe he stumbles upon a Mew in a forest and they start a friendship. He could learn about the unique powers and personalities of legendaries like Lugia and Ho - Oh in his everyday encounters.