Claíomh Mór
Claíomh Mór, 'the great sword' of Irish tradition, is one of the four treasures the Tuatha Dé Danann carried with them when they came to Ireland, and later lore links it to Nuada Airgetlám, king of the Tuatha Dé Danann. In the Lebor Gabála Érenn the sword of Nuada is said to be irresistible once drawn from its sheath, and it is listed beside the spear of Lugh, the cauldron of the Dagda and the stone of Fal. The name is close to, and often confused with, Claíomh Solais, the sword of light, a term that later folklore attached to the magic weapons of heroes and even to a buried golden sword that