One possible main character could be Pikachu. Since Pikachu is a very popular Pokemon, it would be interesting to see it in a prison setting in the Pokemon Mystery Dungeon. It could use its electric powers in unique ways to deal with the prison environment and other Pokemon.
Well, it could be about a group of Pokemon who are wrongly imprisoned in the Pokemon Mystery Dungeon world. They then have to find a way to prove their innocence and escape the prison. Maybe they form alliances with other inmates and discover secrets about the prison along the way.
A Pikachu could be a main character. Pikachu is a very popular Pokemon and it would be interesting to see it in such a tough situation. Maybe it uses its electric powers in clever ways to resist the slave work or to communicate with other Pokemon secretly.
In 'pokemon mystery dungeon guiding light fanfiction', the main characters might be Pokémon that are lost or in need of direction. So, it could be a Pokémon like Psyduck that is often confused but finds purpose through the guiding light. Or perhaps a team of Pokémon including Lucario and Gardevoir who are trying to protect the guiding light from some sort of threat in the Mystery Dungeon world.
A powerful and greedy Team Rocket - like organization could be the main antagonist. They might be trying to take over the Mystery Dungeon world for their own gain, stealing resources and capturing Pokemon.
A group of rogue Pokemon who are jealous of the hero's status and want to take revenge on the family could be the main antagonists. They might try to sabotage the kids' adventures in the mystery dungeon.
Mew is frequently a popular choice. Since it's a mysterious and rare Pokemon, fanfiction writers can create all sorts of interesting backstories and roles for it. It could be a guiding spirit in the Mystery Dungeon, leading Pokemon to hidden treasures or helping them unlock special abilities.
Pikachu is often a popular character. Its well - known status from the main Pokemon series makes it easily recognizable and a favorite for many to include in fanfiction. Another popular one could be Charmander. Its evolution line is iconic, and in the context of a Mystery Dungeon Castle setting, it can bring a lot of action and adventure elements with its fire - type abilities.
Charizard is also quite popular. In fanfiction, it can be depicted as a powerful and somewhat arrogant Pokemon that has to learn to work with others in the mystery dungeon adventures. It often has to face challenges that test its strength and pride.
One of the most popular characters is Pikachu. It's such a well - known Pokémon that many fans like to put it in their fanfiction. It can bring a sense of familiarity and charm to the story. Another popular one is Charizard. With its powerful and cool appearance, it can be a great centerpiece for an action - filled fanfiction plot. Eevee is also quite popular. Since it has multiple evolution forms, it gives a lot of room for creative storytelling, like a story about an Eevee trying to decide which evolution path to take in the mystery dungeon world.
Often, the self - inserted human characters are quite popular. These are the ones where the author imagines themselves in the Pokemon Mystery Dungeon world. They bring a sense of relatability as they experience the world from a human perspective.