There are several directions in choosing a name.
One is in the realm of scenery, such as: Lanshan Mountain Moon Shadow Lonely Moon Peak Purple Peak Sky Moon Crossing the Moon Spring and Autumn
The other is the spiritual realm, such as: Everything is empty and heartless Mage Fairy's Extreme Immortal Style
One is based on the performance of the weapon, such as: Cold Blade, Swift Ling Attack, Divine Power, Flying Bow, Thunder and Lightning, Heavenly Power
The other one is similar to the paint appearance. Relationships, such as: Fire, Flash, Wild Mage
So when you want to choose a name, it depends on which direction you want to pick it
I have thought of a few for you
>According to weapon performance: Jiuxiao Hanyue Sword
According to scene: Frozen Smoke
According to mind: Formless, Mortal
According to popular: Mage Mie