This ancient biological weapon produces a bright orange powder in its bloated body that burns organic matter on contact and almost instantaneously rusts most types of metal, slowly dissolving both into a crystalline dust that the Gasjack re-inhales with a comically drawn-out, noisome snort. At one time, tens of thousands of these monsters were created to battle in a war that ultimately created the planet's most vast and barren desert, where the sand itself is toxic to all but the most unnatural organisms.