Another plot might be that the aura guardian was promised something it desperately wanted in exchange for betraying Ash. For example, power to save its dying homeland. But as the story progresses, it realizes the error of its ways and tries to make amends, leading to a complex and emotional journey of redemption.
Perhaps the aura guardian was mind - controlled. An evil force took over its mind and made it act against Ash. In this case, the story could revolve around Ash trying to break the mind - control and save his friend. It would involve a lot of action and mystery as Ash figures out what's wrong and how to fix it.
Maybe an ancient evil spirit that has a vendetta against Ash. The spirit could possess the aura guardian and make it turn against Ash. In this scenario, the main antagonist is not really the guardian but the spirit that controls it, and the story would be about Ash fighting this spiritual evil.
Another theme might be redemption. After the betrayal, the story could explore whether the guardian tries to make amends or if Ash ever forgives them. It could also be about the journey of the guardian to regain their lost honor or position in Ash's life.
Well, you can try looking on some popular fanfiction websites like Archive of Our Own. Just search for 'ash aura guardian betrayed' there, and you might find some interesting stories.
One possible plotline could be Ash discovers his latent Aura Guardian abilities gradually. He might start having strange visions or experiences related to aura. Then, he has to find someone to train him, like an old Aura Guardian who has been in hiding.
One popular 'ash betrayed aura fanfic' might involve Ash making a decision that Aura misunderstands as betrayal. For example, Ash could be forced to side with a group that Aura sees as an enemy, but Ash has his own reasons like trying to protect a greater good. Another could be where Ash is wrongly accused of stealing Aura's power or something valuable, which creates a sense of betrayal.
Well, in a 'pokemon ash aura guardian fanfic', it might focus on Ash's growth as an aura guardian. Maybe it starts with Ash discovering his latent aura abilities. He then has to train and master them. Along the way, he could meet other characters who either help or hinder his journey to become a full - fledged aura guardian. And of course, his Pokemon would play important roles in his adventures, like Pikachu using its electric powers in combination with Ash's aura abilities to defeat powerful enemies.
One great aspect of Aura Guardian Ash fanfiction could be the exploration of Ash's latent aura powers. Maybe in these stories, Ash discovers he has a much deeper connection to the aura realm than he ever knew. This could lead to him having new abilities and forming unique bonds with Pokémon that are also attuned to the aura.
One possible plot could be that Ash discovers Anabel has betrayed him by siding with a rival trainer in a crucial tournament. This could lead to a rift in their friendship and Ash having to find a way to overcome this setback and prove himself without her support.
One possible plot could be that Ash is falsely accused of a serious crime within the Pokémon world, and Greninja, due to some misinformation or outside influence, turns against him. Maybe a powerful villain manipulates Greninja's mind, making it believe that Ash is a threat to the Pokémon world. This could lead to intense battles between them, with Ash being heartbroken and trying to prove his innocence while also trying to save Greninja from the villain's control.
Perhaps Ash is wrongly accused of something in Skyla's hometown. Skyla believes the false accusations and turns her back on Ash, which makes Ash feel extremely betrayed. He then has to prove his innocence not only to Skyla but also to the whole town.