3-headed dog, Cerberus, mythological creature, snarling, aggressive stance, fiery eyes, sharp teeth, black fur, chains, hellish background, lava, brimstone, dark atmosphere, dynamic action, claws extended, battle-worn, muscular build, glowing cracks in skin, ultrakill, high-energy, intense battle scene, 3/4 view, dramatic lighting, smoke effects, embers floating, cinematic composition, epic scale, fantasy setting.