She says she's a Ruler. But Holmes and Ashiya Doman called themselves Casters, and look how that turned out. Basically, until we actually see her class, assume it is unknown.
In despite of being drawn by Akira Ishida, who also drew the Lancer versions, her tits are not as hilariously big as those mentioned. If the in-game CG is to be believed.
She says she's a Ruler. But Holmes and Ashiya Doman called themselves Casters, and look how that turned out. Basically, until we actually see her class, assume it is unknown.
Thats my point, we shouldn't tag her as Lancer until the second part of the event.