ascalon
アスカロン Asukaron Great_Sword_Ascalon 聖剣アスカロン Seiken_Asukaron
Huge sword weilded by Acqua of the Back.
Ascalon or Great Sword Ascalon is a giant sword, given to Acqua by the Astrological Surgery Brigade. It is based on the legend of St. George, specifically the holy sword he wielded to slay a dragon.