Axe Stomp Tuning Device

Increases damage of Axe Stomp by 5%.
[Bonus by Weapon Grade]
[Grade D]: Damage of Axe Stomp +3%.
[Grade C]: Physical Damage against enemies of every size +10%.
[Grade B]: Damage of Axe Stomp +4%.
[Grade A]: Damage of Axe Stomp +6%.