The Watchblade

Description
This sword was crafted to serve as a simple blade for a watchman in the ancient kingdom of Valusia. Over the years, it was passed down, watchman to watchman, and the hilt was rebound, but the blade was never repaired.

Eventually, Valusia disappeared and the watchmen were gone, and the blade was forgotten.

When it was rediscovered, it was rusted and pitted by age, but it could still be swung in battle.

Any attempts to remove the rust and stains are futile, but the weapon itself is as sturdy and steadfast as its name.

Source
The  can be found in Legendary Chests.

Repair

 * This item cannot be repaired with a . It can, however, be repaired with the:
 * or the.
 * Adding a will double the maximum durability, but will not change the sword's current durability.
 * When it's durability falls to zero it becomes unusable, but remains in your inventory and can be dismantled for s.