A species from Trials in Tainted Space home to the frozen moon Uveto VII. These seemingly feral dragons have six legs, are approximately twenty-feet tall (excluding the wings) and possess powerful psionic abilities, which allow telepathic communication.
Despite huge differences in height, Frostwyrms are capable of reproducing with human-sized species. Hybrids are bipedal and use 4 of their 6 limbs as arms.

For more information: https://wiki.smutosaur.us/TiTS/Frostwyrm