A menacing ethereal crystalline sorcerer floats ominously, its form composed entirely of jagged, translucent purple and blue crystals. Each sharp facet catches and refracts light, revealing a faint, shadowy humanoid silhouette suspended within the depths of the crystalline structure. Its extended hands surge with crackling raw arcane energy, a visible manifestation of dark magical power, giving its glowing fingertips an intense, volatile appearance.