hm... in some of the panels, it looks like one of her arms is gone. In other panels, her weapon switches hands. So maybe she actually still has both of her arms.
@Nk9bjP4A her left arm was cleanly amputated since page 25. The second panel is her reflection in the dragon's eye, which is naturally inverted. The rest of the chapter is consistent.
@Nk9bjP4A
the only moment we see the weapon in another hand is in the eye of the dragon, surely the artist who wanted to give a style by mirroring in the eye of the dragon
(besides the arm and the wound to the face also reverse which confirms this hypothesis )