Dual Sword Mastery

Allows a One-Handed Sword user to equip a One-Handed Sword on their sub weapon slot, making them a Dual Swords; the sub weapon slot sword has all its stats negated, except for its element - A Dual Swords has its ATK gain changed: Main ATK = (player's level + Main Weapon ATK + STR + AGI + DEX * 2) * ATK% + flat ATK - A Dual Swords has its attack animation changed, taking into account a hidden stat "Sub ATK": Sub Weapon ATK = Attack value of subhand sword * (1 + Weapon ATK%/100 + refine of weapon²/200) + refine of weapon + flat Weapon ATK Sub ATK = (player's level + Sub Weapon ATK + STR + AGI * 3) * ATK% + flat ATK Sub Base Damage = (Sub ATK + player's level - mob's level) * (100 - mob's Physical Resistance)/100 - Dual Swords skills calculate their base damage differently, taking into account their Sub ATK and another hidden stat "Subhand Stability": Subhand Stability = subhand sword's Stability/2 + STR * 0.06 + AGI * 0.04 + Stability% from equipments/ava/etc. Dual Swords Skill Base Damage = (Main ATK + Sub ATK * Subhand Stability + player's level - mob's level) * (100 - mob's Physical Resistance)/100- For auto attacks, the damage calculation of each hand will use the element of the sword on said hand; for Dual Swords skills, all skills have the Dual Element attribute and use the subhand sword's element as the secondary element; if the skill doesn't have a fixed element, it will use both swords' elements instead - Accuracy -(55 - 3 * Skill Level)%; Critical Rate -(55 - 3 * Skill Level)%; total AMPR is doubled; these effects only apply if you're a Dual Swords