One way is to make them extremely ambitious. Since Sith are all about power, a Sith Pureblood OC could be constantly striving for more, whether it's more influence in the Sith order or greater control over the Force. For example, they might be willing to betray their comrades to get ahead.
Well, for a Sith Pureblood OC in a Star Wars fanfic, you could make her Zara. Zara has a very distinct look with her black horns and violet eyes. She was trained from a young age in the ways of the Sith, but she secretly yearns for a different path. Maybe she has an encounter with a Jedi who makes her question her Sith teachings. This could lead to an interesting internal struggle within her character throughout the fanfic.
One common theme is the struggle between the dark side and the possibility of redemption. Even though Sith Purebloods are often associated with the dark side, some fanfics explore if they can turn away from it.
You can start by looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms have a large collection of Star Wars fanfics, including those focused on Sith Purebloods. Just use the search function and type in relevant keywords.
One common theme is the struggle for power within the Sith hierarchy. Sith Purebloods are often depicted as having a natural inclination towards the dark side, so their quests for more power and influence are frequently explored.
One memorable OC Sith could be Darth Zyra. She has a very distinct look with her purple - hued lightsaber and her elaborate black and red robes. Her power lies in her ability to manipulate the minds of her enemies, which she uses to great effect during battles in the Clone Wars.
One way to create an OC Sith in Star Wars Clone Wars fanfiction is to first decide on their backstory. Maybe they were once a Jedi who was seduced by the dark side. Their appearance could be menacing, with dark robes and a red lightsaber. For example, they could have been a Jedi who was frustrated with the Jedi Council's decisions and turned to the Sith for power.
One great Star Wars: The Clone Wars OC Sith fanfiction is 'The Dark Apprentice'. It follows an original Sith character who has a unique backstory. The author does a great job of integrating this OC into the existing Clone Wars universe, showing how they interact with well - known characters like Anakin and Obi - Wan. The story is full of action - packed lightsaber battles and political intrigue.
Darth Maul is a great character to include. As a Sith, his menacing presence and his unique fighting style would add a lot to a Sith Pureblood fanfiction. Another one could be Count Dooku. His sophisticated and devious nature would interact well with the Sith Purebloods. And of course, General Grievous. Even though he's not a Sith, his role in the Clone Wars and his connection to the Separatists could create interesting storylines when paired with Sith Pureblood characters.
One plot idea could be a Sith Pureblood rising through the ranks in the Sith hierarchy during the Clone Wars. They might start as an apprentice and have to prove themselves by undertaking dangerous missions against the Jedi. For example, they could be tasked with infiltrating a Jedi stronghold to steal a valuable artifact. Another idea is a story about a Sith Pureblood who has a change of heart and tries to defect from the Sith. This would involve a lot of internal struggle as they fight against their dark side training and the fear of reprisal from the Sith Lords. A third plot could revolve around a group of Sith Purebloods who form a secret society within the Sith order, with their own goals and agendas that may or may not align with the overall Sith plans during the Clone Wars.