Excalibur, also known in Welsh as Caladfwlch, was one of the Swords of Eden, bladed artifacts created by the Isu scientist Hephaestus to use in the fight during the War of Unification. These Pieces of Eden granted their bearers great power and leadership, and were later used by influential humans in battle. Isu (? – ?)[1][2] None, submerged in lake surrounding Avalon (until 4th century)[3] Women of the Mist (4th century – c. 516)[4] Arthur Pendragon (c. 516 – c. 537)[1] None, hidden below…