Jinx born as Powder is a notorious Zaunite criminal and one of the two lead characters of the animated series Arcane, alongside her older sister Vi Vi. When their parents were killed by Enforcers, Powder and Vi were adopted by Vander Vander, who let them take up thievery jobs with their adopted siblings Claggor Claggor and Mylo Mylo. However, when Powder accidentally murdered Claggor, Mylo and Vander, Vi abandoned her to Silco Silco, who adopted Powder and molded her into becoming Jinx to enforce the formation of Zaun. Jinx delivered the Hextech Gemstone to Silco for them to use against Piltover, but her loyalties wavered when Vi returned to her life with Caitlyn Kiramman Caitlyn Kiramman in tow. After following Vi and Caitlyn out of Zaun, Jinx confronted them before fighting Ekko Ekko, which ended in Jinx being critically wounded and having her body infused with Shimmer to save her life. Wishing to confront her issues, Jinx kidnapped Vi, Caitlyn and Silco in a tense confrontation that resulted in Jinx accidentally killing Silco and using Fishbones to bomb the Piltover Council.Jinx formerly Powder is a very slender and pale Zaunite with naturally blue hair and wide blue eyes before being injected with shimmer by Singed. In Act 1 as Powder, she had shoulder-length hair tied back into a singular plait, with hastily cut bangs accented with silvery intricate clips, some freckles, and wore purple and dark-blue stitched-up and worn Zaunite clothing. In Acts 2 and 3, Jinx has ankle-length hair, styled into two plaits with a chin-length swoop of hair on the right side of her face. She wears a worn black sleeveless leather crop top with a leather choker, knee-length distressed purple striped trousers often complemented by dark leather accessories with purple accents on her arms, a pair of intricate worn black leather ankle-length boots with purple laces, and a worn crisscross band-aid on her left knee. She has pale blue stylized cloud tattoos on her right arm and midriff and her nails are covered with blue and pink paint. After Singed saved her life through the use of the drug “shimmer”, Jinx became far paler, and her blue eyes turned to a pinkish color due to the shimmer with visible purplish veins by her eyes.As a child, Powder was kind but curious, clumsy, impulsive, and reckless, often making decisions that would badly affect the people around her. She was constantly criticized by Mylo for this, and it made her hate herself when she made these decisions. Deeply traumatized by the death of her parents, she would have attachment issues, specifically towards her sister Vi Vi. After she caused the deaths of Mylo, Claggor, and Vander and Vi seemingly abandoning her during her most weakest moment, her trauma would become more pronounced, experiencing both auditory and visual hallucinations of Mylo and Claggor's dead voices and bodies. She would put on a veneer of a bubbly and energetic person, only to hide the hurt and trauma of past events. She's also very sarcastic, extroverted with a twisted sense of humor. After she was adopted by Silco, Jinx became more chaotic and more prone to hallucinations, even enjoying becoming a criminal and being slightly sadistic. Sevika stated that Jinx is someone impossible to control, even for Silco. Although chaotic and unstable, she's a very skilled inventor with a high level of creativity and intelligence, creating her own arsenal of weapons. Her chemical alteration by Singed would further deteriorate her mental stability, making her even more paranoid and more erratic. With the return of her sister seemingly with another person, she would do whatever it took to not lose her again, even kidnapping her and accidentally killing Silco. Despite being mentally unstable, a part of her as Powder remained inside her; this would make her feel scared of being the same fearful, weak, and timid child before Vi abandoned her, thus creating an inner struggle about her true identity. However, after Silco's death, she fully embraced her new identity as Jinx.

Jinx:Sitting on her bed in the dark