Showdown is a former recruit of the Bloodpool academy, where she befriended Brahma, but Showdown quit Bloodpool to become an assassin. She came in contact with the extradimensional being known as Never Man and assembled four villains into the team known as the Four, without telling them about Never Man or that their actual goal was to give him knowledge about the world around him. While not an actual field member of the Four, Showdown acted as a backup in case of need.
When Brahma grew disenchanted with Youngblood, Showdown approached him and offered him a place with the Four. When Showdown interfered in a battle between Youngblood and the Four, Never Man ordered her to bring them all to him, so she revealed that Never Man was the actual mastermind behind the Four. The Four didn't like this revelation, particularly Brahma who attacked Never Man, but when Never Man harmed Brahma, Showdown decided to not serve him anymore, and Youngblood and the Four destroyed Never Man together. 
After Brahma returned to Youngblood, Showdown was seen leading the Four in the field, taking a more direct role in the team than before.
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