To get to the underground where the domain is located, it is recommended to teleport on the second closest waypoint from the domain's mark on the map. As you glide down face the mountain to see a white forest. Beyond that is the domain.
Slumbering Court Artifact Rewards
Husk Of Opulent Dreams Set
A character equipped with this Artifact set will obtain the Curiosity effect in the following conditions: When on the field, the character gains 1 stack after hitting an opponent with a Geo attack, triggering a maximum of once every 0.3s. When off the field, the character gains 1 stack every 3s. Curiosity can stack up to 4 times, each providing 6% DEF and a 6% Geo DMG Bonus. When 6 seconds pass without gaining a Curiosity stack, 1 stack is lost.
When the character equipping this artifact set heals a character in the party, a Sea-Dyed Foam will appear for 3 seconds, a Sea-Dyed Foam will appear for 3 seconds, accumulating the amount of HP recovered from healing (overflow included). At the end of the duration, the Sea-Dyed Foam will explode, dealing DMG to nearby opponents based on 90% of the accumulated healing. (This DMG is calculated similarly to Reactions such as Electro-Charged, and Superconduct, but is not affected by Elemental Mastery, Character Levels, or Reaction DMG Bonuses). Only one Sea-Dyed Foam can be produced every 3.5 seconds. Each Sea-Dyed Foam can accumulate up to 30,000 HP, including overflowed healing. There can be no more than one Sea-Dyed Foam active in the entire party at any given time. The effect can still be triggered if the character is not in the field.