Jinx, born as Powder, is a notorious icon 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.