Maybe his extraordinary skills. For example, if he has amazing combat abilities like being able to defeat multiple opponents single - handedly. This would definitely make him seem like a badass.
Fanfiction.net is also a good place to find 'badass edward elric fanfiction'. There are many talented writers who post their works there. You might need to do a bit more digging through the different categories related to Fullmetal Alchemist, but it's likely you'll come across some great stories that feature Edward Elric in a 'badass' way.
A really interesting 'badass edward elric fanfiction' is the one that delves into his past more deeply. It shows how his early experiences made him into the tough and capable character he is. We see him facing some old enemies with new - found strength and a more strategic approach, which is quite exciting and gives a fresh perspective on his character.
His attitude. Percy in fanfiction often has a 'don't mess with me' attitude. He doesn't shy away from a fight and is always ready to stand up for what he believes in. He'll face any opponent, no matter how powerful, without hesitation.
One example could be that he had a epic fight scene. He was outnumbered but still managed to hold his ground. He used his agility and strength in a really cool way. Maybe he was dodging attacks with ease and then counter - attacking with powerful blows. This kind of scene would show his badass nature.
Hermione is a badass in fanfiction due to her leadership skills. She can take charge in difficult situations. Imagine a scenario where the trio is in a dangerous, uncharted part of the wizarding world. Hermione steps up, using her strategic mind to lead Harry and Ron to safety. She's also not afraid to break the rules if it means doing the right thing, which is a very badass trait. She'll go against the established order to fight for justice and what she believes in.
In the wolf fanfiction, bella might be a badass because she could have extraordinary courage. Maybe she is fearless when facing dangerous wolves or other threats in the story.
In fanfiction, female Izuku is often badass because she can break gender stereotypes. For example, she might be physically stronger or more strategic than the male characters. She can also be more emotionally resilient, like not being afraid to show her feelings while still being a powerful hero.
In fanfiction, Percy can be made into a badass by giving him extraordinary magical abilities. For example, he might be able to perform complex spells with ease that others struggle with.
Rachel's talent also plays a big part. She's a great singer in the show, and in fanfiction, this talent is often magnified. She can use her voice to inspire others or to outshine her rivals, which gives her that badass aura. Also, her ability to overcome obstacles, such as dealing with mean comments from other characters, is emphasized more in fan - written stories.
In fanfiction, Ash is often made a smart badass through his battle strategies. He might use unique combinations of Pokémon moves and abilities that others haven't thought of. For example, he could analyze his opponent's weaknesses quickly and act on it.