Jinx, born as Powder, is a notorious Zaunite criminal and Vi’s younger sister. When she was a little girl, her parents were killed in a failed uprising against Piltover, leading Vander, the unspoken leader of the undercity, to adopt both her and Vi as his own daughters. After a series of events forced Jinx and her sister apart in more ways than one, she was fundamentally and irrevocably changed, transforming her into the demented killer she is today. She suffers under many disorders.