She used to be an Autobot named Elexus.. now, she discards that name, and calls herself "Queen Darkness", hopefully thinking it would catch on. Spoiler alert: it does, though Autobots mock her and call her Elexus rather than Queen Darkness. She and Flash have a rivalry. Darkness was a Decepticon on the second ship.. Also Darkness is seductive towards the Autobots, and comes off as very angry and annoyed to the Decepticons. She uses her human mode, and her body as a sort of thing (yes, she's techno-organic), since Flash hates organics. She's also one of the smartest and cleverest Decepticons.