One possible motive could be that Team Rocket has constantly been causing trouble for Ash and his friends. They've been trying to steal his Pokémon time and time again, which might have finally pushed Ash over the edge.
Maybe Ash discovers that Team Rocket has some evil plan that could endanger not only his Pokémon but also the entire Pokémon world. In order to protect everyone, he decides to take them out. Team Rocket has shown that they are willing to go to great lengths for their own gain, and Ash might see them as a threat that needs to be eliminated.
One possible motive could be that Mewtwo sees Ash as a threat to its own power or freedom. Ash is constantly on a journey to catch and train Pokémon, and Mewtwo, being a powerful and intelligent Pokémon, might view Ash's actions as a potential danger to its kind or its own existence.
Another plotline might involve Ash teaming up with some of the Team Rocket members, perhaps reluctantly at first. They could be forced to work together due to a common threat to both the good guys and the bad guys in the Pokemon universe. This would lead to some interesting character developments for Ash as he has to deal with the not - so - good nature of Team Rocket.
One possible role is that he could be a spy. Since he was turned into a Pokémon, Team Rocket might not suspect his true identity and he could gather information about their evil plans. For example, he could overhear conversations between Team Rocket members that he couldn't have accessed as a human.
Yes, in some Team Rocket fanfictions, Ash can be depicted in various ways that might involve him having some sort of connection to Pokémon in a different light. Maybe he could be experimented on by Team Rocket to gain Pokémon - like abilities, or be transformed into a Pokémon - like being in a very creative and out - of - the - box fanfiction concept.
It could lead to some really unexpected and exciting plot twists. Ash's alignment with Team Rocket would completely change the dynamics of the story.
Jessie and James are the obvious ones. They are the main members of Team Rocket. Jessie could be constantly trying to outdo Ash in Pokémon battles or contests of skill. James, on the other hand, might be more conflicted about having Ash around. He could secretly admire Ash's kindness towards Pokémon and start to have second thoughts about their Team Rocket activities.
The interesting part about 'ash team rocket fanfic' is that it allows for a lot of creativity. Writers can take the well - known Pokémon universe and twist it. With Ash and Team Rocket as the focus, they can create complex relationships. Maybe Ash has to save Team Rocket from a real danger, and in the process, they become friends. Or perhaps Team Rocket tries to use Ash for their own gain but ends up learning valuable lessons. It also gives a chance to explore the motives of Team Rocket in more depth. For instance, in some fanfics, we learn about their pasts that made them become who they are, and how Ash might be the key to their redemption.
One possible plot could be Ash getting brainwashed by Team Rocket into thinking his Pokémon friends are his enemies. Then he starts to help Team Rocket in their schemes against other trainers. This would create a lot of conflict as his real friends try to snap him out of it.
The plot might involve a power struggle within Team Rocket. Ash and Misty could be brought in because they possess certain skills or knowledge. For example, Ash's bond with his Pokémon could be seen as a valuable asset. Misty's understanding of water - type Pokémon might also be desired. However, they soon realize that they are being used in a power play between different factions of Team Rocket, and they must decide which side to take or find a way to break free from the whole mess.
If Team Rocket turns Ash into a Pokemon, his relationship with his old Pokemon would change. His Pokemon might not recognize him at first. But as they sense his familiar spirit, they could try to protect him. And Ash, in his new form, could learn a lot about the true nature of Pokemon. He could discover secrets about their evolution, abilities, and the hidden powers within them that he never knew as a human trainer.