- "The Statue of the Goddess enshrines this sword. Its blade glimmers with divine light."
- — In-game description
The Goddess Sword's primary purpose is aiding Link in fulfilling his role as the chosen hero. When pointed skyward, the sword can charge up and deliver a Skyward Strike, a ranged attack that has the power to activate various artifacts Hylia left behind for the Hero. The sword is inhabited by a sentient being known as Fi, who aids Link in his quest.
Link finds the Goddess Sword enshrined within a chamber found inside the Statue of the Goddess in Skyloft, led there by Fi. In its initial state, it could be wielded even by the likes of Ghirahim, as evidenced by his ability to snatch the sword from Link during their first battle. Throughout the course of the game, the Goddess Sword must be tempered with the three Sacred Flames of the Golden Goddesses, hidden away in dungeons on The Surface. This allows the Goddess Sword to transform and unlock new powers: Farore's Flame, found inside the Ancient Cistern, transforms it into the Goddess Longsword, which increases damage dealt and makes the blade longer. Nayru's Flame, found aboard the Sandship, transforms it into the Goddess White Sword, improving its capacity for dowsing.
Lastly, Din's Flame, found within the Fire Sanctuary within Eldin Volcano, transforms it into the Master Sword, whose Skyward Strikes charge more quickly. Eventually, the Master Sword receives the blessing of the Goddess Hylia, reincarnated as Zelda, bestowing the sword's full power as the legendary "Blade of Evil's Bane", to be wielded only by the chosen hero; additionally, the range of a Skyward Strike increases, and charging it is no longer required.
The Goddess Sword and two of its tempered forms appear as Fi's weapons in her Goddess Blade moveset, though the Goddess Whitesword appears under the name "True Goddess Blade" (as it is the Goddess Sword's strongest form before it turned into the Master Sword).
- Goddess Longsword
- Master Sword