Claymores are created by the Organization to fight the Yoma. By implanting Yoma flesh and blood into humans, they are able to create a hybrid that is faster than the source Yoma with their original human combat training and intelligence. It is unknown why Claymores are so overpoweringly powerful in comparison to Yoma despite only being half-Yoma. This hybridization process changes the human's hair to a light-blond or white, their eyes to silver, and sometimes they develop elf-like ears. Claymores are stronger than typical humans, have an enhanced healing ability, and some limited shape-shifting abilities. In battle, Claymores wield large claymore swords, hence their name. Claymores are in danger of losing control of their powers if they activate more than 80% of their demon strength, changing them into a form of yoma called an "awakened being".