Spoiler: Story (click to see content)
Spoiler: Movelist (click to see content)
Xia's primary trait is speed and poking ability with her normals and command moves. As compared to Kaneda or Hiko, she needs to rely on longer combos and super meter for big numbers, damage-wise; she has a few tools for juggling, as well.
She also serves as the midboss of the game, due to her in-story reputation.