One common theme is chaos. The Joker is all about chaos, and when you introduce an original character (oc), it often shows how the oc either thrives in or tries to combat that chaos. For example, in many fics, the oc might be trying to bring some order to the Joker's madness.
Well, there's this 'Joker's New Ally' fanfic. In it, the original character (oc) has some really interesting backstory that ties in with leto's Joker. It shows how this oc could potentially change the Joker's plans. There are some great character - development moments throughout the story.
In a way, it was. However, the portrayal also incorporated some creative liberties to give it a fresh take. The look and character traits were inspired by the comics while adding new elements for the big screen.
It could begin in a dark and chaotic Gotham. Maybe the reader is a journalist trying to expose the underworld and catches the Joker's attention. He might be intrigued by her fearless nature.
A third idea is that the OC is a mental health professional who gets the chance to treat the Joker in Arkham Asylum. Through their sessions, they learn about his past traumas and how they've shaped him into the monster he is. But the OC also has to be careful not to be manipulated by the Joker, which creates a tense and psychological story.
The writing style matters a great deal. It should be able to convey the madness of the Joker and the uniqueness of the OC. Vivid descriptions of the characters' actions and emotions are important. For instance, when the Joker is laughing maniacally, the writing should make you feel the unease. Also, the dialogue should be believable, whether it's the Joker's cryptic remarks or the OC's attempts to reason with him.
One common theme is the power struggle. The Joker is a powerful and chaotic character, and the OC often has to find a way to either match his power or outwit him. For example, in many stories, the OC might have a unique ability that gives them an edge in this struggle.
Well, in a fanfic where an OC has Wolverine's powers against the Joker, it could start with the OC being in Gotham. The city's dark and gritty nature would contrast with the OC's more animal - like and straightforward power set. The Joker would likely try to use the OC's short temper (a trait Wolverine sometimes shows) against them. Maybe he'd set up situations that would make the OC lash out and cause destruction, which would then turn the city against the OC, putting them in a tough spot.
One interesting Oc and Joker fanfiction could be about an Oc who is a detective trying to outwit the Joker. The Oc has unique skills and a backstory that makes the chase thrilling.