A Warhammer 40K Space Marine Captain, standing in a heroic pose with one foot on a rocky outcrop, clad in bulky, intricately detailed power armor with gothic engravings and purity seals. The armor is reinforced with a minimum 2mm thickness for all parts, ensuring 3D printability. The captain wields a massive chainsword in one hand and a bolt pistol in the other, with a flowing cape attached to the shoulder pauldrons. The helmet features a grim, skull-shaped visor with glowing eye lenses. The base is a detailed, circular platform with scattered skulls and cracked stone, designed for tabletop gaming. Extremely detailed, high-resolution, epic stance, game asset, optimized for 3D printing.