Upgrades this weapon to a Masterwork. Once upgraded, the weapon will obtain enhanced capabilities such as increased stats and/or additional perks. Defeat combatants while using this weapon in Arc, Solar, and Void modes to unlock this upgrade. Defeating combatants in the Throne World or Battlegrounds will unlock these objectives faster. Defeating Champions provides bonus progress to all 3 objectives.
Turnabout: Using this weapon to break the shield of a combatant or a Guardian using their Super will grant you an overshield.