Gengar is a popular choice. Its already spooky appearance and ghost - type nature make it easy to incorporate into horror scenarios. It can lurk in the shadows, play tricks on trainers, or even possess other Pokemon to cause chaos.
Mewtwo is also often used. Given its powerful psychic abilities, in horror fanfiction it can use its powers to manipulate minds, create illusions that drive people mad, or even break the boundaries between dimensions to let in otherworldly horrors. Its origin as a genetically - engineered Pokemon also gives room for dark backstories and experiments - gone - wrong themes.
Pikachu is a very popular one. Since it's one of the most recognizable Pokemon, seeing it gender - swapped can lead to some really interesting scenarios. Charizard is also commonly used. Its large and powerful form can be re - imagined in a different light as a female or male - swapped.
Pikachu is often a popular character. It's so well - known and loved in the Pokemon franchise, and in fanfiction, it can be the center of all kinds of adventures, like getting lost in a mysterious cave and having to find its way back to its trainer.
Pikachu is often a popular character in pokemon shipwreck fanfiction. Since it's one of the most well - known Pokemon, it can play a key role in helping the survivors. Ash Ketchum, as a trainer, is also commonly featured. His experience and bond with his Pokemon can be a central part of the story. Misty and Brock might also appear, with Misty's water - type Pokemon being useful in a shipwreck situation near water, and Brock's knowledge of Pokemon care being valuable for any injured Pokemon.
In Pokemon birth fanfiction, Misty can be a popular character. She has a strong connection with water - type Pokemon, and she could be involved in the birth of a water - type Pokemon, perhaps using her knowledge of water to create a suitable environment. Professor Oak is also a character that often shows up. His vast knowledge of Pokemon would make him a valuable asset during a Pokemon birth. And Pikachu, as Ash's most famous Pokemon, might also be part of the story, either as a helper or just being curious about the new - born Pokemon.
Charizard is quite popular in Pokemon muscle growth fanfiction. Its large size and natural strength make it a prime candidate for stories about muscle growth. Machamp is another one. With its already muscular physique, fanfiction often explores how it can further enhance its muscle power. And then there's Gyarados. The big, powerful water - type Pokemon can be depicted in fanfictions as growing even more massive muscles, perhaps due to some special underwater training.
Elizabeth Bennet is extremely popular. Her strong - willed and intelligent nature makes her a great character to put in new and different situations in fanfiction.
Ash Ketchum is often involved. He's a well - known trainer, and in fanfictions about pokemon egg laying, he might be in a situation where he discovers a rare Pokemon egg and has to figure out how to take care of it. Another popular character is Misty. She could be involved in stories where she uses her knowledge of water - type Pokemon to help with the hatching process of a water - related Pokemon egg.
In many 'pokemon meets mlp fanfiction', Charizard from Pokemon is a character that stands out. Its powerful and majestic appearance can make for great interactions with the ponies. It could be seen as a sort of 'mystical beast' in the MLP world, and the contrast between its fire - breathing and the more gentle magic of the ponies can create some exciting plot points.
Ash is often a popular choice. Since he has such a strong bond with Pokémon, it's easy to imagine scenarios where he is possessed by a Pokémon spirit. Another one could be Misty. Her feisty personality could lead to interesting storylines when combined with Pokémon spirit possession.
Seto Kaiba is also often used. His ambition and his drive to be the best duelist could lead him to time - travel in search of more powerful cards or to prove his superiority in different eras. He might go back in time to challenge the greatest duelists of the past with his modern - day deck.