The Necromorph Saw Arm is a grotesque, biomechanical weapon formed from the mutated limb of a Necromorph, featuring a large, circular saw blade embedded within twisted, sinewy flesh and exposed bone. The blade is serrated and rusted, with dried blood and organic matter clinging to its teeth, while the arm itself is elongated and asymmetrical, with pulsating veins and patches of necrotic skin. The overall appearance is horrifyingly organic yet mechanically functional, with a dark, metallic sheen on the blade and a sickly, pallid tone to the flesh.