Arbitrium damage increases by additional 10%.
[Grade Bonus]
[Grade D] Arbitrium damage increases by additional 7% and heal effectiveness by 6%.
[Grade C] Increase magic damage against all size enemies by 10%.
[Grade B] Arbitrium damage increases by additional 8% and heal effectiveness by 6%.
[Grade A] Arbitrium damage increases by additional 10% and heal effectiveness by 6%.