Ethereal cosmic sorcerer shrouded in swirling mist and smoke, depicted in a photorealistic style with unreal detail, octane render techniques highlighting volumetric fog and ethereal lights, vibrant hues illuminating the scene, hyper-detailed robes adorned with stardust patterns, eyes like nebulae glowing with mystical energy, a staff crackling with celestial power, surrounded by a dynamic dance of colors and shadows reflecting the infinite mysteries of the universe.