Duergar female. Oil painting simulation, dark fantasy. A female duergar (gray dwarf) psychic warrior, standing on a stone bridge within a vast expansive cavern of the Underdark. Pale ashen gray skin, completely bald head, dull black eyes with intense focus. Wearing dark practical plate armor of duergar make, angular and unadorned, with a hooded cloak blending into the shadows. She wields a longsword in her right hand, imbuing it with visible psionic energy—faint silver-white crackling aura surrounding the blade, subtle glow tracing the edge. Behind her, a massive stone arch bridge spanning a deep chasm, bioluminescent fungi clinging to cavern walls, faint purple faerzress mist drifting below. Dramatic single light source from above casting sharp shadows, cool eerie lighting. Grim stoic expression, powerful stance. Visible oil brushstrokes, desaturated grays, deep blues, silver highlights, painterly finish