To create unique characters for an MLP Dark Mirror Universe fanfic, think about the values of the dark mirror world. If it's a world full of envy and hatred, then the characters should reflect that. You could combine different pony types in strange ways. Say, a half - unicorn, half - earth pony character with a split personality due to the chaos of the mirror universe. Also, consider their backstories. Maybe a character was once good in the normal universe but a tragic event in the mirror universe turned them evil. Give them names that sound menacing or different from the normal MLP names too.
Well, in an MLP Dark Mirror Universe fanfic, a possible plot is that the Elements of Harmony are actually used for evil. The ponies who usually protect Equestria are now using the power of the elements to control and oppress others. There could also be a plot where the different pony races are at war with each other instead of living in harmony. Maybe the unicorns think they are superior and are trying to enslave the earth ponies and pegasi. And of course, the fanfic could explore how the friendships that were once strong in the normal Equestria are now broken in this dark mirror world.
They often start by mixing different traits from existing Naruto characters. For example, they might take the determination of Naruto and combine it with the intelligence of Shikamaru. Another way is to give characters unique powers or abilities that are not in the original series. This can make the character stand out. And they also consider the character's backstory, like a character who grew up in a hidden part of the Naruto world and has a different view of things.
You can start by changing their backstories. For example, if you want to make a unique Lucy, instead of being from a rich family, she could be an orphan raised by street mages. This would change her personality and how she approaches magic. She might be more street - smart and less naive.
They might give the characters unique powers. For example, a fae character could have the power to control dreams in a very different way than what's in the original book. Or they could change the backstory of a character. Maybe a character was once a human before being turned into a fae and that shapes their personality and actions.
Think about the different cultures in Alola. You could create a character who is a descendant of an ancient Alola tribe and has special knowledge about Pokemon passed down through generations. This would make them unique and add an interesting element to the story.
To create unique characters, start with their backstory. For example, a character could have grown up in a hidden part of the 'game of fate' world, away from the main action, which gives them a different perspective. Give them a distinct personality trait, like being overly superstitious in a world full of calculated risks. Their appearance can also be unique, perhaps having a rare mark on their body that is related to an old legend in the game's lore.
Combine different traits. Maybe a character is both extremely powerful in magic but also has a crippling fear of heights. This kind of contradiction can make a character more complex and unique. They could be the most powerful mage in a battle on the ground but completely useless when they have to fly on a magical broom to reach a high - up tower.
Give them unique appearances. Maybe a trainer has a distinct style of clothing inspired by a certain type of Pokemon. This can also tie into their personality. For instance, a trainer who loves Electric - type Pokemon might have a bright, electrifying color scheme in their clothes. Also, consider their Pokemon teams. A character with a team full of Poison - type Pokemon might be seen as more mysterious or edgy compared to someone with a team of cute Normal - type Pokemon.
You can start by basing them on different aspects of the coral island itself. For example, a character could be inspired by the colorful coral, being very flamboyant and full of life. Or a character could be like the tides, sometimes calm and other times wild and unpredictable.
The ponies' personalities can be adapted to fit in. For instance, Rainbow Dash with her adventurous spirit could be like a young pirate eager to prove herself. She could learn sword - fighting from the pirates and add her own flying skills to their adventures.