A massive, cybernetic warrior stands tall amidst a ruined cityscape. His heavily armored body, a mixture of sleek metal and damaged plating, crackles with green energy. The warrior wields a glowing, neon-green sword, its blade pulsing with vibrant energy as if charged with raw power. His helmet is angular, with glowing eyes, and a deep green core at the chest radiates light, adding to his ominous presence. The destroyed city around him is dark and twisted, with broken buildings and scattered debris. Lightning crackles through the air, illuminating the warrior as he stands in a defiant pose, ready to strike. The scene exudes an aura of apocalyptic strength and technological menace.