All items gain additional options when upgraded to +14 and +15. Options depend on the equipment type and grade:   Weapons +14 Increase Excellent Damage +X +15 Increase Physical and Wizardry Damage +X%   Bolts ad Arrows +14 Enemy's Defense Ignore Rate +1% +15 Enemy's Defense Ignore Rate +1%   Wands+14 Increase Mana + X+15 Increase Mana + X   Shields +14 Increase HP +X +15 Increase Defense +X