A "Koloss" is a fictional creature from the Mistborn series by Brandon Sanderson. These beings are created by the manipulation of metal and are characterized by their immense size and strength. They are often depicted as towering figures with a grotesque appearance, typically made from the bodies of humans who have been transformed through a dark process. In the Mistborn universe, Koloss serve as brutal warriors for the Lord Ruler and are known for their lack of intelligence and emotional depth. Their primary function is to engage in combat, and they are often used to instill fear in enemies. Despite their formidable presence, Koloss struggle with their identity and the remnants of their human past.