Increases damage of Acidified Zone (Fire/Wind) by 5%.
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[Bonus by Weapon Grade]
[Grade D]: Damage of Acidified Zone (Fire/Wind) +3%.
[Grade C]: Physical Damage against enemies of every size +10%.
[Grade B]: Damage of Acidified Zone (Fire/Wind) +4%.
[Grade A]: Damage of Acidified Zone (Fire/Wind) +6%.