Axe Tornado Tuning Device

Increases damage of Axe Tornado by 5%.
Decreases Axe Tornado skill cooldown by 1 second.
[Bonus by Weapon Grade]
[Grade D]: Damage of Axe Tornado +7%.
[Grade C]: Physical Damage against enemies of every size +10%.
[Grade B]: Damage of Axe Tornado +8%.
[Grade A]: Damage of Axe Tornado +10%.