A captivating side portrait of a dark sorceress with cascading obsidian hair, standing defiantly before a menacing demon; her form is elegantly composed of flickering black flames. Envisioned as an epic fantasy card game illustration, the atmosphere crackles with dynamic lighting, accentuating her mystical presence and the swirling tendrils of her hair. The scene is rendered in ultra high definition, capturing every magical detail of this powerful witch's enigmatic allure.