For the record Chrono and Xleena, Rigor never uses her powers because a lot of the time, they control her instead of her controlling them. She did not intend to use them, but as she thought back on what memories she did have, something triggered in her, and she's seeing things as before she died. Her feelings as well as the scene itself triggered her powers to manifest themselves. As of now, she thinks that Mask is the figure who had murdered the old man, even though he hasn't. She's no longer in control of herself.