Secret-calibur

, True Name , is the Noble Phantasm of Mysterious Heroine X. Secret Calibur are holy swords that resemble Excalibur and Excalibur Morgan clad in beams. They boast tremendous power against Sabers.
Normally, dual-wielding swords of opposing attributes would cause a tremendous power suspension in both of them, yet Mysterious Heroine X is able to wield both blades, proving her strength.
==References==
Category:Noble Phantasms
Category:Anti-Unit Noble Phantasms
Category:A+ rank Noble Phantasms
Category:EX rank Noble Phantasms
Category:Swords
Category:Noble Phantasms introduced in Fate/Grand Order
Category:Noble Phantasms of Artoria Pendragon
Category:Parody Noble Phantasms