Some fanfics might have Eevee evolving into a form that combines two existing evolutions, like a mix of Jolteon and Flareon. This could be due to some strange scientific experiment in the fanfic's plot.
Fanfiction writers sometimes give Ash's Pokemon mega evolutions that are related to the environment or a specific location. For example, if Ash is in a snowy area, his Snorunt could mega evolve into a form that is better adapted to the cold. It could have ice - based attacks that are more effective in the frigid climate, and its body might be covered in a thicker layer of ice for protection. This kind of portrayal adds an interesting layer to the story and the battles that Ash participates in.
One idea could be a story where a female Eevee evolves into Sylveon in a lemon grove. The sweet scent of the lemons could have some sort of magical influence on her evolution. Maybe it gives her powers related to the freshness and energy of the lemons, like the ability to heal others with a touch that smells like lemon blossoms.
One great Bakugan fanfic featuring Alice and Shun could be one where they team up for a special Bakugan battle tournament. They combine their unique strategies, with Shun's agility and Alice's intelligence, to outwit their opponents. Maybe in this fanfic, they also have to face some challenges outside of the battle, like dealing with a malfunctioning Bakugan gate that could disrupt the entire tournament.
A fanfic centered around Alice and Shun could explore their relationship. Maybe they start as rivals in the Bakugan battles but gradually realize they have a lot in common. For example, they both have a strong sense of justice and a love for their Bakugan partners. As they spend more time together, they could form an unbreakable bond.
Once upon a time, Lync was a rather reserved Bakugan. He met a beautiful Bakugan named Aurora. Their eyes met during a battle tournament. Lync was immediately smitten. He started to leave little gifts for Aurora, like shiny crystals he found. Aurora was initially hesitant but soon realized Lync's true heart. They began to spend more time together, exploring the Bakugan world hand in hand, or rather, paw in paw.
First, decide which female Eevee evolution you want to focus on. If it's Espeon, for example, you could start with the Eevee being drawn to a mysterious lemon - scented glade. Describe how the scent makes her feel curious and a bit uneasy. Then, you can start building the connection between the lemon - scented environment and her evolution into Espeon. Maybe the lemons have some sort of psychic energy that triggers her latent psychic abilities.
There could be many scenarios in such a fanfic. Maybe they share a kiss after a great battle where they realize their deep feelings for each other. It could be a moment of celebration and the start of a new relationship in the Bakugan world.
There are quite a few fanfics out there. Some focus on the relationship between Alice and Shun in a more platonic way, like the fanfic 'Bakugan Allies'. It shows how they support each other during battles and in their daily Bakugan - related adventures. It's a great read if you like stories about friendship within the Bakugan universe.