demonic knight 3d model

A full-body 3D model of a menacing, demonic knight assassin. The character is clad in heavily damaged, spiky, dark purple and black steel armor with glowing red accents. The helmet features prominent horns and jagged spikes. The armor on the chest is skeletal, revealing a bony ribcage texture underneath. The character wields a large, serrated greatsword with a pulsing red energy line running through the blade. The pose should be a dynamic battle stance. Style: Dark fantasy, high polygon count, PBR textures (albedo, normal, roughness, metallic, AO) for realistic metal and bone detail.