A blade imbued with Fire Magic.
Magic Imbued-Weapon (魔合器, Magaki) refers to the ability to infuse a weapon with elemental-based magic, enhancing the strength and deadliness of said weapon. A popular skill amongst swordsman, this is applicable to swords, knives, staffs, and other melee weaponry and even long range weapons such arrows and bullets. The degree of enhancement hinges on the user's sheer power and skill with the elemental magic involved.
- Thanks to User:Perchan for the translation.