It is said that a certain great mage prepared it in a robe and used it.
It has been modified to suit the OS weapons.

For each 2 Refine Levels:
MATK +20

Refine Level +7:
Decreases variable cast time by 15%.

Refine Level +9:
Increases magical damage with every element by 15%.

Refine Level +11:
Increases magical damage against monsters of Small and Medium sized enemies by 15%.
Decreases fixed cast time by 0.2 seconds.

When equipped with Cannon Rapier-OS:
MATK +30

For each 2 Refine Levels of Cannon Rapier-OS:
Increases damage of Hell Inferno by 4%.

When equipped with Rutilus Stick-OS:
MATK +30

For each 2 Refine Levels of Rutilus Stick-OS:
Increases damage of Comet by 4%.

When equipped with Kuroiro-OS:
Increases magical damage with Water, Wind and Fire element by 5%.

For each 2 Refine Levels of Kuroiro-OS:
Increases damage of Flaming Petals, Freezing Spear and Wind Blade by 3%.