One plot idea could be that May discovers Maxie's plans for Team Magma early on. She then tries to stop him by using her Pokémon skills in a series of battles. Another idea is that Maxie realizes the error of his ways through interactions with May. Maybe he sees her bond with her Pokémon and starts to question his own motives. A third plot could involve May and Maxie having to team up against a greater threat, like a powerful and mysterious Pokémon that is causing chaos in the region. This forces them to put aside their differences and work together.
Some plot ideas could revolve around a forbidden friendship. Maxie, being from Team Magma, and May, a Pokémon trainer, form an unlikely friendship. They keep it a secret from everyone else. As their friendship grows, they start to influence each other's views. Maxie might become more empathetic towards Pokémon, and May might understand the root causes of Team Magma's actions. Or there could be a plot where May accidentally discovers a hidden side of Maxie that he doesn't show to his Team Magma members. This discovery makes her see him in a new light and she tries to help him come to terms with this hidden part of himself.
One idea could be exploring Maxie's relationship with his father in his childhood. Maybe his father was a strict trainer who instilled in Maxie a love for Pokemon but also a sense of competition. Another plot could be that his father disappeared while on a Pokemon research mission, and Maxie is now on a quest to find out what happened to him. It could also be interesting to see how his father's actions or beliefs influenced Maxie's later decision to form Team Magma.
Another plot could involve her going on a journey to discover her own identity outside of being Maxie's daughter. Along the way, she meets different trainers and Pokémon, and she has to deal with the prejudice some have towards her because of her father. She could also discover some long - lost secrets about her family that change her perspective on everything.
A plot could involve May and Maxie being forced to team up during a strange natural disaster in Hoenn that affects both Pokémon and humans. They initially don't trust each other but gradually learn to work together. Also, perhaps May's Pokémon get accidentally influenced by Maxie's experiments, and she has to find a way to reverse it while dealing with Maxie.
The complex character of Maxie. He has such strong beliefs and motives that make for great storytelling in fanfiction.
One idea could be the main character being reborn as a Pikachu and having to navigate the world with its electric powers while making friends with other pokemon. Another could be being reborn as a Eevee and having the unique ability to evolve into any form at will, which causes both envy and admiration among other pokemon. Maybe the reborn pokemon has memories of being a human and uses that knowledge to outwit trainers and other threats.
One possible fanfiction could be about Maxie's childhood discovery of his love for geology. Maybe as a child, he was constantly exploring caves near his hometown, collecting unique rocks. This early interest led him to study more about the earth and eventually formed his extreme views in the Pokemon world regarding land expansion.
I really like the fanfiction 'Maxie's Redemption'. In this story, Maxie realizes the error of his ways after the events with Team Magma. It's a great character study of Maxie and how he tries to make amends in a world full of Pokemon.
One possible plot could be Flannery trying to understand her father's motives in Team Magma. She might initially be against his actions but as the story progresses, she discovers there are deeper reasons behind what he does. For example, Maxie might be trying to create a better world for his daughter in his own twisted way.
One plot idea could be a story where a trainer forms an unexpected bond with Reshiram. Maybe the trainer is initially afraid of Reshiram's power but over time they learn to work together and understand each other.
A plot idea could involve a Phantump that is actually a reincarnation of a human who had a strong bond with Pokemon. The Phantump then tries to find its way back to its human family while facing the challenges of being a Pokemon in a world that doesn't understand its true nature. It could be a heart - wrenching and exciting story.