A realistic armored villain recognizable as Shredder from TMNT, with a sleek, militarized, sci-fi armor style inspired by Darth Vader. Keep Shredder’s iconic spiked helmet crest, bladed gauntlets, and angular shoulder armor. The helmet should be clearly Shredder’s shape, not horned or demonic. The armor is smooth, plated, industrial, not ornate. Dark black and gunmetal steel with subtle purple accents. A heavy flowing cape like Vader’s. Chest armor is segmented, minimal, and functional. No glowing runes or fantasy curves. Realistic metallic materials, cinematic lighting.