To farm Lustrous Sands from Guyun, you need to complete Hidden Palace of Lianshan Formula, a Domain of Forgery located in Liyue.
Lustrous Sands from Guyun are rewarded for finishing Hidden Palace of Lianshan Formula—Domain of Forgery: Thundercloud II, and you can receive between two to three of them per run.
To enter Hidden Palace of Lianshan Formula II, you need to be Adventure Rank 21. It is recommended to have your party about Level 36 and characters that use Cryo and Pyro.
Hidden Palace of Lianshan Formula is northwest of the Statue of the Seven south of Mingyun Village.
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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 Lustrous Sands from Guyun Weapon Ascension Material.
On Sunday, you can choose whatever domain you desire.
To complete Thundercloud II, you must kill all 16 enemies within 360 seconds, over two waves.
- The 16 enemies to eliminate:
- First Wave
- Electro Slime x17
- Large Electro Slime x3
- Mutant Electro Sliime x3
- Second Wave
- Large Electro Slime x2
- Mutant Electro Slime x1
- First Wave
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 II, 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.
- Type: Weapon Ascension Material
Using an Alchemy Table. You can turn lower tier materials into higher tier materials.
These are the other tiers for this Ascension Material