From FlyFF WIki
This weapon is a Unique weapon.
Not available to purchase from NPCs.
Drops from the following Flyff Masquerpets:
Unique weapons can currently be obtained from Giant Monsters/Masquerpets or from the Crafting system. Can also be obtained from certain boxes such as Raizei's Guardian Chest of Phat Lewt or from the chain quest Weapons of the Guardian.