
Lancer (ランサー, Ransā) is the Lancer-class Servant of Kayneth El-Melloi Archibald in the Fourth Holy Grail War of Fate/Zero. He is a chivalrous servant who wishes to do his best to serve his Master and obtain victory within the war for the Grail. He shares a bond of mutual respect with rival Servant Saber, wishing to face her in an honorable duel to the death. He is one of the Servants able to be summoned by the Protagonist in the Grand Orders of Fate/Grand Order.
Legends of the Multi-Universe: Weirdmageddon[]
Diarmuid Ua Duibhne debuts in this story as Nagito Komaeda's "Servant". Nagito sent Lancer to steal money and treasure at Shiganshina District where he meets and fights Eren Yeager.