A towering, dark mecha with intricate armor and sharp, angular features, emitting a mystical purple glow. The mecha has an intimidating, shadowy presence with details that highlight its power and menace. Surrounded by a swirling mist and dark particles, illuminated by a few intense purple energy streaks. The scene is dimly lit, with shadows enhancing the mecha's massive and formidable structure, creating a haunting and powerful atmosphere
