Created by Luingurth the Blademaster in the early Second Age, the clear blue laen edge of the sword bearing its forger's name was one of the greatest weapons ever made and later returned in manyforms throughout Middle-earth. After he turned to evil, Luingurth forged the Irgaak swords, which were able to summon the "Harvest of Fools". They were not of the same calibre as Luingurth, however, and were eventually defeated, being no match for the Blue Laen blade. At various times, the sword would refuse to fight any foes, claiming its purpose was to combat Arxdukanga alone, and at other times it would defend against the Irgaak swords. Plainly, it had a personality of it's own.