It could be about Ash finding a Gyarados in an unexpected place, like a hidden lake in a forest. Then he tries to train it and form a bond with it, facing challenges along the way.
You can try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just type in 'Ash Gets a Gyarados' in the search bar and see what comes up.
In this fanfiction, it could be that Ash has a really good strategy. He might first make Gyarados use up a lot of its energy by making it attack Charmander's illusions or decoys. Then, when Gyarados is tired, Charmander can step in with its full power. Charmander could also use the environment to its advantage. Maybe there are some flammable objects around that can be set on fire by Charmander, creating a more powerful and widespread fire attack that Gyarados can't avoid.
The unexpectedness of it. Gyarados is a very strong Pokémon, and seeing it being defeated by a Charmander, which is not as physically imposing, makes for an interesting read. It could also be that in the fanfiction, there are unique twists and turns in the battle. For example, Charmander might discover a new move during the fight or Ash might come up with a last - minute strategy that turns the tables, all of which make the scenario really engaging.
There could be a fanfiction where Ash catches the Red Gyarados during a special event in a mysterious lake. In this story, the Red Gyarados might be seen as a symbol of power and Ash's catching it could be a turning point in his journey, leading to new adventures and challenges.
You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own (AO3). These platforms have a large collection of Pokémon - related fanfictions, and there's a good chance you'll find some about Ash catching a Red Gyarados there.
Well, often in such a 'ash gets betrayed fanfiction', the story might start with a seemingly normal day for Ash. Then, out of the blue, someone he trusts deeply, like Pikachu or one of his human friends, does something that he perceives as a betrayal. This could be something as simple as not believing in him during a crucial battle or siding with an enemy for a reason that's not clear to Ash at first. It can create a lot of emotional turmoil for Ash and make for a very engaging read.
One common theme is empowerment. Female Gyarados are often depicted as strong and independent, breaking free from constraints. For example, in many stories, they might not conform to the typical behavior expected of Pokémon in their species. Another theme is friendship, like forming unique bonds with trainers or other Pokémon. This shows that despite their power, they also value connections.
One possible reason for Ash getting betrayed in the fanfiction could be misinformation. A villain might spread false rumors about Ash, making his friends believe he has done something wrong. His friends, without verifying the truth, turn against him. It's a sad situation where lack of communication and trust plays a big role.