Helm Hammerhand

Helm Hammerhand is an antagonist in Middle-earth: Shadow of War. He was the ninth King of Rohan and last King of the first line. In his day, his rule was plagued by a war with the Dunlendings, who were attempting to usurp his rule of Rohan.

Ambushed by a prince who wanted his throne and had taken his daughter for a lover, Helm was shot at point blank range with arrows. As he lay dying at Edoras, Annatar (Sauron in fair form) and Celebrimbor visited the wounded king, giving him one of the Nine Rings of Power. When he recovered, he attacked his would-be assassin, declaring that war had come upon his enemy's house.

However, when Helm's daughter tried to stop her father's rage, Hammerhand accidentally struck her down, killing her with his war hammer. Horrified, his grief turned to rage, and Helm proceeded to slaughter his rival and even his own captains who tried to stop him. He was thus transformed by the terrible incident and his Ring of Power into a Nazgûl, one of Sauron's most powerful and terrible servants.