Brain Boyz

Brain Boyz is a name used by the Orks to refer to their ancient creators, who may be the long-lost starspanning xenos species known as the Old Ones. The Brain Boyz are believed to have encoded various forms of technological and scientific information into the genetic structure of the Orks at a cellular level, as well as provided the Greenskins with their unusual gestalt psychic abilities that grow stronger as the number of Orks in a given locale increases.