Krorks

During the War in Heaven millions of standard years ago, the Old Ones created a warrior race known as the Krork, from which the present-day species of Orks may derive. It is believed that the Brain Boyz engineered the Orks to be their warrior caste alongside the ancestors of the Aeldari, using them as essentially humanoid biological weapons to protect them against various other ancient races. In the Old Ones’ case, the Krork were created as part of a desperate ploy to defeat their ancient enemies, the Necrons and their C’tan masters, during the galaxy-spanning conflict known in Aeldari Mythology as the “War in Heaven” over 60 million standard years ago.