The psychic ooldurs hide away in the deepest recesses of the Underdark. An ooldur's body is frail, but their oversized heads contain their equally massive brains, which they cover at all times with helmets they make themselves from hide and metal. An ooldur's smooth skin is grey or pale blue, their large eyes are pure black and they have little to no body hair. An ooldur's mouth, nose and ears are incredibly small and they are shorter than most other humanoids.