Genshin Impact has rolled out version 5.5, unveiling a fresh territory in Natlan along with two new artifact sets: Finale of the Deep Galleries and Long Night’s Oath. While the former lacks effective application for any characters, the latter holds significant potential for individuals like Xiao and Varesa by enhancing their plunge damage output.
Evaluating the Usefulness of Long Night’s Oath for Xiao

The Long Night’s Oath artifact set augments plunge damage by 25%, and its 4-piece bonus can amplify this damage by an impressive 75%. On the surface, this appears to favor Xiao, yet several drawbacks make it less appealing than his existing artifact combinations.
- Minimal Improvement: The benefits provided by this set don’t significantly surpass what Xiao already achieves with other artifacts.
- Requirement for Precision: Maximizing the set’s potential hinges on executing perfect rotations; any deviation will reduce its effectiveness to that of his current artifacts.
- Resource Management: Farming the related domain is not resin-efficient, particularly since the second set, Finale of the Deep Galleries, lacks functionality with current characters.
- Constellation Effects: If you possess certain constellations for Xiao, the new set may not objectively enhance his performance.
Given these considerations, players are advised to stick with their Vermillion Hereafter or Marechaussee Hunter builds if they are effective. Additionally, obtaining these previous sets is more straightforward through the Artifact Strongbox feature, allowing for easier farming.

The Marechaussee Hunter set enhances Normal and Charged attack damage by 15%, with a notable Crit Rate increase of up to 36% depending on the character’s HP fluctuations. In contrast, the Vermillion Hereafter set provides an 18% boost to ATK, with the potential for an additional 48% ATK increase triggered by HP loss following an Elemental Burst.
Furthermore, farming the Marechaussee Hunter domain is a resin-efficient choice, also dropping artifacts from the Golden Troupe set required for various off-field characters like Furina, Fischl, and Yae. Depending on player preference, pursuing either the Marechaussee or Vermillion artifacts remains beneficial.
In conclusion, retaining your existing builds with Vermillion or Marechaussee Hunter is highly recommended, especially for players who already have a strong Crit Ratio. Efficient farming paths make these sets viable for both seasoned explorers and newcomers in Genshin Impact.