Starmetal Eater

Strange protoplasmic pests that subsist on the rarest of metals, starmetal eaters usually remain microscopic and innocuous. Yet when these creatures gorge themselves on a rich vein of naturally occurring starmetal or even items made of starmetal alloy—either of which they can detect at great distances—they experience a swift growth spurt and can reach several feet in diameter. Each starmetal eater fixates its diet on one specific type of starmetal, gaining strange abilities as its appearance and essence are suffused with its metal of choice.
Abysium Eater Abysium eaters glow with a sickly blue-green radiance and are dangerously radioactive. They are sometimes found in nuclear power plants that have undergone a deadly meltdown, basking in the lethal radioactivity, or accompanying pluprex demons.
Djezet Eater Thin and runny, djezet eaters are rust-red in color and impart an organic residue that readily conducts magical energy.
Horacalcum Eater Copper-colored with whorls and eddies in their ever-shifting forms, horacalcum eaters bend space-time with their presence.
Inubrix Eater Pale and ghostly in appearance due to a molecular alignment that allows them to pass through objects, inubrix eaters resemble glistening silvery clouds more than animate masses of metal. They often rest in a torpor within walls or ceilings.
Noqual Eater Green, crystalline noqual eaters move in clunky spasms rather than with the smooth motion of other starmetal eaters. They gradually nullify magic in their surroundings and shun areas rich in magical energy.
Siccatite Eater These shining silver oozes maintain an improbable balance between deadly cold and blistering heat, dealing wounds that are crosshatched with frostbite and charring.