Excalibur (エクスカリバー, Ekusukariba) is an legendary Holy Sword wielde by the exorcist, Arthur Pendragon. It's also the famed sword wielded by King Arthur during the defense of Camelot against the Saxons. Excalibur is also considered to be a sacred holy relic.
It is said the Holy Sword was created by Yahweh for Gabriel to wield against the Demons. However, Metatron told Gabriel that a mortal would wield the sword in the future, and thus gave it to Acilla, the lady of the lake in the lake of Avalon in Camelot. After some hundred years, the sword was then obtained by King Arthur, who used it to defend Camelot up to his death, where his wife, Guinevere took the sword and escaped Camelot while also carring Caliburn with the remaining Knights of the Round Table.
The two holy swords are then passed down as the Pendragon Family turned into a group of very skillful exorcist in Great Britain who eventually came to japan. Now the two swords are in possession by Arthur Pendragon.
- According to Mephisto, and even Satan, Excalibur is the second strongest sword in the universe, be hide Caliburn.