Base creature: Giant Centipede (CR 1/4) This colossal centipede, with an iridescent chitinous exoskeleton, scuttles through a dimly lit underground cavern. Its many legs are tipped with venomous claws, and a faint, sickly green glow emanates from its segmented body. It lurks near phosphorescent fungi, its multiple eyes gleaming in the gloom.