Excalibur, Weapon of the Divine

Excalibur is the only Magic Weapon that the Warriors of Divine Light is against destroying, since it belongs to the current Archknight. Excalibur is able to drain power from it's foes with such speed that even A Rank Demons and under won't be able to fight within less than a minute, but the one flaw that this blade has is when it is separated from it's master, the powers cease and the drainage reverses, giving back power to its opponents.