Dark Sun: The Tyrant of Tyr
Cilopses prowl the sandy wastes and deserted streets at night, seeking an easy meal. Templars favor cilopses as hunters because of their psionic-based tracking talents. Enemies of the sorcerer-kings shut their doors and slink away into the shadows when they hear the scuttling sound of a cilops approach.
Mundane centipedes of Athas infest any area where water collects, and these larger predatory versions are found in the same environments. Cilopses have tougher shells than their smaller kin, as well as psionic abilities that debilitate prey and keep it within striking range.
Captured cilopses can be trained as pets or guardians. Some templars train cilops stalkers as lone hunters, then turn them loose in the streets of the city-states.
Psychic Trail. The cilops is an unparalleled tracker once it saw a creature. The cilops can use its reaction to choose a creature that it can see and gain advantages on attack rolls against this creature and inflict an extra 1d6 psychic damage on its attacks. The creature cannot hide or be invisible from the cilops and the cilops gain a psionic effect similar to a Locate Creature spell for the next 24hours to track the creature. The cylops cannot use this feature one more than one creature at a time.
Spider Climb. The cilops can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.