Well, if Ash's Pikachu evolved into Raichu in fanfiction, it could change the whole dynamic of their journey. Pikachu's evolution might bring new power levels and moves, making battles easier or more complex. Ash would need to adjust to the new Raichu, and their bond might be affected. Maybe Pikachu's cute factor would be replaced with a more intimidating Raichu presence. It could also lead to new storylines where Ash has to deal with the jealousy of other Pokemon or trainers who are envious of his powerful Raichu.
Fanfiction about Oshawott and Meloetta is appealing because it combines two very different Pokemon. Oshawott is a water - type starter, a tough little fighter. Meloetta, on the other hand, is a musical and somewhat ethereal Pokemon. In fanfiction, you can create unique storylines. For example, Meloetta could use its music to give Oshawott special water - based attacks. This combination of their abilities can lead to really exciting battles or adventures in the Pokemon world.
One possible fanfiction could be about Oshawott and Meloetta teaming up on a musical adventure. Since Meloetta is known for its musical abilities and Oshawott is a brave little Pokemon, they could travel through the Pokemon world to find a lost melody that has the power to heal sick Pokemon. Along the way, they face challenges like other Pokemon trying to stop them because they fear the power of the melody.
In a fanfiction about these two Pokemon, they could be involved in a time - travel adventure. Oshawott and Snivy are sent back to a time when Pokemon were first discovered. They face many challenges as the Pokemon of that era are different from what they know. They must adapt quickly and also try to find a way back to their own time.
In a Pokemon Oshawott and Snivy fanfiction, perhaps they could be part of a special team. They might start as rivals but gradually become friends. For example, they could compete in a local Pokemon tournament where they learn about each other's strengths and weaknesses, and in the end, they combine their skills to defeat a powerful opponent.
I'm not sure specifically as there could be many different 'ash's snivy evolves' fanfics. Generally, it might be about the evolution of Snivy in Ash's team. It could involve the journey leading up to the evolution, like the battles and experiences that trigger it.
In some fanfictions where Ash's Gible evolves, it might gain new and powerful moves. For example, it could learn Dragon Claw and become a more formidable opponent in battles against other trainers' Pokémon. It might also develop a closer bond with Ash as it evolves, showing more loyalty and determination to win battles for him.
One great ash and oshawott fanfiction could be one where they go on an adventure in a new, uncharted region. They face various challenges together, like battling against a new type of powerful Pokemon. Ash's experience combined with Oshawott's determination makes them a great team in the story.
Growth is another theme. Oshawott starts as a beginner Pokémon. Through the fanfic, we can see it grow in strength, skills, and confidence. It might face difficulties at first but then overcome them, which is a great theme to follow. Also, loyalty could be a theme. Oshawott's loyalty to Ash and vice versa can be shown in various situations, such as when they are in danger and have to rely on each other.
In a fanfic, Meowth's evolution might be a result of a magical spell gone wrong. Instead of evolving into a normal form, it becomes a hybrid of different Pokemon types. This new form gives it strange and wonderful abilities, like being able to turn invisible or create illusions. But it also has to deal with the confusion of its new identity and how other Pokemon and humans react to it.