Good choice to have a subtitle, steering the focus away from Lilith. I do not think the magic casters are a good at representing the heroines concept, at least not with the casting of magic in the picture. Would make me think, they are Lilith.
It is usually the hero against the evil caster. While there are caster heroes, they usually start in a state where they cannot cast reliable or at all. (Thinking Wheel of Time here. Or even Harry Potter and the Skywalkers)