Its in-game description reads "Sword once used by the legendary Aga." This sword is perhaps the first sword with a fast 5-hit combo that you'll obtain during the game. This sword's speed is so great that most enemies won't be able to counterattack you. You can find the Ruler's Sword in dungeons' chests, or you invent it (using the photos listed below). It cannot be bought.. This sword is a medium-tier weapon (Tier 6), meaning it'll gain 4 Synthesis Points (SP) per level-up.