Cú Chulainn

Cú Chulainn is the legendary hero of the Ulster Cycle, born to a mortal woman and the Sun God Lugh. He earned his moniker, "Culann's savage dog," after killing a blacksmith's guard dog as a child and volunteering to serve as its replacement. Under the tutelage of Scáthach, he mastered magic runes and spearplay. He wields the Gàe Bolg, a cursed spear that leaves wounds incapable of healing. His presence is established across the Fate franchise, including Fate/Stay Night, Fate/Grand Order - First Order, and Fate/hollow Ataraxia.