Genshin Impact : Luminous Sands from Guyun

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To farm Luminous Sands from Guyun, you need to complete Hidden Palace of Lianshan Formula, a Domain of Forgery located in Liyue. You can also purchase them from the Liyue Souvenir Shop owned by Xingxi, called Mingxing Jewelry. You can buy x3 Luminous Sands from Guyun for 4 Geo Sigils apiece, but once you have purchased all of them, they do not restock.

Luminous Sands from Guyun are rewarded for finishing Hidden Palace of Lianshan Formula—Domain of Forgery: Thundercloud I, and you can receive between four to six of them per run.

To enter Hidden Palace of Lianshan Formula I, you need to be Adventure Rank 16. It is recommended to have your party about Level 15 and characters that use Cryo and Pyro.

Hidden Palace of Lianshan Formula is northwest of the Statue of the Seven south of Mingyun Village.

Click the image to enlarge.

Hidden Palace of Lianshan Formula location

Hidden Palace of Lianshan Formula rotates the rewards you get based on what day of the week it is.

On Mondays and Thursdays, the domain is called Thundercloud, and you can get the Luminous Sands from Guyun Weapon Ascension Material.

On Sunday, you can choose whatever domain you desire.

To complete Thundercloud I, you must kill all 20 enemies within 360 seconds, over two waves.

The 20 enemies to eliminate:
- First Wave
  - Electro Slime x15
- Second Wave
  - Electro Slime x3
  - Large Electro Slime x1
  - Mutant Electro Slime x1

Due to the Electro enemies, it is wise to bring along characters that inflict Pyro and Cryo Damage.

When inside a Domain of Forgery you are inflicted by a Ley Line Disorder. This is a debuff that is never removed throughout the duration of the Rift.

In Thundercloud I, you have the following Ley Line Disorder:

Your character will be periodically inflicted with Engulfing Storm, continuously draining your Energy until the inflicted Electro element is removed.

If you have completed the domain successfully, to claim the rewards, you need to spend 20 Original Resin or use a Condensed Resin to receive double. You do not have to claim the rewards if you choose not to do so.

The stone pillars that tower amid the Guyun Stone Forest were once the stone lances Morax used to defeat his enemies. As time passed, the body of these gods penetrated into the pillars, granting them divinity. The pillars would sometimes shed crumbs of hatred and curses.