Zagdakka was an immensely powerful Ork Weirdboy and Warboss. Zagdakka's psychic abilities were strong enough to render him able to control large numbers of other Orks, imposing them with a degree of discipline and focus usually unseen in Greenskin hordes. Zagdakka's army became known as the Weirdwaaagh!, eventually invading the forge world of Columnus. During the battle, Zagdakka's powers were enough to destroy two Reaver Titans and erase a section of a five-hundred foot wall. However after slaying the Raven Guard Captain Stenn, Zagdakka and his Weirdboy retinue were incinerated by a massive barrage of Iron Hands Land Raider Redeemers under Iron Father Kristos.