Gilded Sword

The Gilded Sword is one of Link's swords in Majora's Mask. It is the ultimate state of the Kokiri Sword, and has a greater reach and deals three times as much damage than in its original form.

Location and Uses
Once the Kokiri Sword has been reforged into the Razor Sword by the Mountain Smithy, it is able to be further upgraded into the Gilded Sword, so long as Link possesses the Gold Dust from the Goron Races and has at least twenty-four hours left in the current three-day cycle.

When the young hero gives Zubora a bottle of Gold Dust, they will reforge the Razor Sword into the Gilded Sword for free. Unlike the Razor Sword, the Gilded Sword does not break after a certain amount of use, and can be taken through time when playing the "Song of Time" and returning to the Dawn of the First Day. This is the most powerful sword that can be equipped by an un-masked Link under the B-button.

Trivia

 * Ghirahim is typically seen wearing a cloak that has a pattern strongly resembling the Gilded Sword on its underside.