Onyx Nyx Luck, AKA Mare-Do-Well, is a Unicorn from Equestria who is very powerful, having evenly-matched magic skill to Twilight Sparkle and Starlight Glimmer, maybe even stronger, and was a former resident in Ponyville. She was there during the events of Mysterious Mare-Do-Well, when she was rescued by one of the Mane Six as the masked vigilante, specifically Applejack in the carriage that was rolling toward a cliff, which she was asleep through unlike the other 4 ponies in the carriage, and started idolizing the mare. However, she quickly disappeared following the Mare-Do-Well Celebration when Mare-Do-Well disappeared after Rainbow Dash chased her off. When she didn't hear from the hero again, Onyx came to the conclusion that Rainbow Dash was responsible for the disappearance, dubbing her a jealous menace. Before she could learn the truth, she left Ponyville and attended a magic school, gaining all the power she needed to challenge Rainbow Dash herself. She took up the identity of Mare-Do-Well in order to accomplish her goal of rescuing the real Mare-Do-Well, and punish Rainbow Dash for her 'crime'. Yet she fails to realize that Mare-Do-Well was just used to teach a lesson because she was not a listening pony and more of a scenario-learning pony, but by the time Onyx learns the truth, Rainbow Dash will have already paid for her supposed 'crime', and that her believing crazy stories was actually someone of Rainbow's past and a former member of her fanclub who let her down turned into Mare-do-Wrong, clearly tricking Onyx into being a pawn for her scheme, along with her other enemies. Despite her misguided quest, Onyx is still a good pony that, despite having mixed views on how to fight crime such as doing it with fame and fortune on the side, she will easily know when she's gone too far and will do anything to correct it, even if it means beating the sense into her victims.
History[]
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Abilities[]
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