Drawn by me
Fourarmís mutation has caused tumorous growths to grow throughout his body, warping his skeletal and muscle structure. The mutation caused the growth of additional arms, some of which fused together, growing in size and mass from the combined bone and muscle mass. His smaller limbs are continually drained of nutrients to compensate for Fourarmís larger limbs, causing them to become atrophied by comparison. As a result of these further growths, the limbs are covered by even more of the rock-like tumors covering the rest of Fourarmís body.