A massive, futuristic, AI-controlled mobile fortress standing in a dark, stormy environment. The structure is a blend of sleek alien technology and advanced military design, towering several hundred meters tall. Its surface is made of adaptive nanoshield armor with shifting geometric patterns and glowing blue and red circuitry lines. Multiple articulated legs and heavy treads allow it to move across any terrain, with thruster ports for hovering. The upper structure houses rotating communication spires, weapon arrays, and drone bays. Several hovering drones with sharp angular designs orbit the fortress. The atmosphere around it crackles with energy, with arcs of electricity connecting towers and a faint holographic shield dome partially visible.

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