Xerox is a member of the Red Team. She was revealed on 11/11/15, shortly after the Fantendo Now episode "Xerox" dropped. Her "original" is X-Ray.
Leah's girlfriend for a decently long amount of time, however it's debatable on whether the two actually loved each mututally. Leah seemed more intrested in X-Ray's ability to disguise herself than she was with the person behind the mask, while Xerox longed to be loved by Leah. She was imprisoned at the end of her debut but it's hard not to feel sorry for her, even if she attempted murder.
Known as Mirror Move, Xerox basically sets up a giant mirror across the field line, automatically reflecting back balls back into that subsection. For dodgeball, this prevents anyone from going out. For basketball, this basically traps anyone left on the other side, and for swimming it prevents anyone from getting past.
Midnight Red Cross Dress
Based off her white dress with the crosses that debuts in this game, although the dress is now black.
White House Dinner Dress
Based off the dress she wears to the White House Dinner in the episode "Xerox". It is also called the "Date" dress.
Toxic Needle Dress
Likely based off Leah Needlenam's namesake: needles. She also has the colors of poison: green and purple.
Holy Bible Dress
Likely based off The Twisted Cross and their twisting of the bible, the dress has crosses all over it, including upside down ones.
Sad Times and Bloodshed Dress
Likely based off the fact that most fans of her seem to feel incredibly sad for her and the fact she's tried to kill someone.