Original Sword Skill

OSS is the abbreviation of Original Sword Skill. A system introduced in ALO which allows the player to create a sword skill of their own, the downside being that such skill is only accepted by the system depending of the speed, combo and final hit of the skill. The strongest OSS created are Salamander General Eugene's 8-hit Volcanic Blazer and Absolute Sword Yuuki's 11-hit Mother's Rosario.