Magic Formula Armament

Ars Armagus (術式兵装, Jutsushiki Heisō, Skill Formula Armaments) or "Armagus" is Ars Magus, but with the intent to kill the opponent.

Information
During the Dark War, in order to use armagus in the most effective way, it would need to consume a great amount of seithr which came from the Black Beast itself. With this knowledge, close range and melee weapons were the ideal type of weapons to develop. Those with high synchronicity were given especially advanced weapons. One of the most known of these types of weapons was the Sealed Weapon Izayoi. Many of the Izayoi was produced but only one or two remain. The Sealed Weapons weren't the final stage in the Armagus' evolution and mankind created something more powerful called Nox Nyctores, the causality weapons. The Nox Nyctores were weapons that were made to directly combat the Black Beast and with the causality weapons and ars magus, the war had finally turned in mankinds favor.