A colossal reptilian titan, over 300 feet tall, covered in rugged, battle-scarred scales resembling molten rock. Jagged dorsal plates glow blue, hinting at its atomic power. Its deep-set eyes glow menacingly, and its massive jaws are filled with razor-sharp teeth. A long, spiked tail and muscular limbs with sharp claws enhance its intimidating presence. The stance is powerful, slightly hunched, exuding dominance. The model should feature ultra-detailed textures and a cinematic feel.