Glacier Flower Spell(Severe Rainstorm)

Increases damage of Severe Rainstorm by 20%.
For each 3 Refine Levels:
Increases damage of Severe Rainstorm by additional 10%.
Refine Level +9:
Decreases Severe Rainstorm skill cooldown by 2 seconds.
Refine Level +11:
Increases damage of Severe Rainstorm by additional 20%.