Groblonik was an Ork Warboss. Leading a massive Waaagh!, Groblonik's forces tore through several worlds before being stopped at the Battle for Sularian Gate. As his forces were broken, the Warboss met Ezekiel of the Dark Angels in single combat, with the Librarian using his psychic powers to incinerate the Ork's brain. However, despite his brain matter leaking from his ears, Groblonik still came at Ezekiel with his Chainaxe, but was decapitated in a swift strike by the Dark Angel. Afterwards, Groblonik's head was tossed into the scattering Ork mobs below.