Xueyi is a Sub DPS Character who has a Quantum element in The Destruction Path in Honkai: Star Rail. Here is a guide for Xueyi's Best Build, Team comps, lightcones, relics, and abilities priority for her.
Xueyi's Best Build
Xueyi Sub-DPS Build Set
Here is Sub DPS Build Set for Xueyi if you want to use her as Sub-DPS.
| Best Light Cone | |
| Relics and Ornament | |
 Genius of Brilliant Stars |  Talia |
| Main Stats | Sub Stats |
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Since she is a character who focuses on utilizing the Break Effect she can benefit from Genius of Brilliant Stars which makes her deal more Quantum DMG by ignoring enemy DEF.
If you have more than 145 SPD, you will gain additional Break Effects by using Talia to maximize her DMG.
If you don't have these Light Cone or Relic, you can also use the Recommend Lightcone and Relic below.
Best Lightcone
Here is a list of recommended lightcones that can be used with Xueyi:
 On the Fall of an Aeon | When she attacks, increases her ATK by 8% in battle and this can stack up to 4 times. After she inflicts Weakness Break on an enemy, increases DMG by 12% for 2 turns. |
 Under The Blue Sky | Increase her ATK by 16% and when she defeats an enemy, increase CRIT Rate by 12% for 3 turns. |
 A Secret Vow | Increase her DMG Dealt by 20% She also deals an extra 20% if enemies current HP% is equal to or higher than her current HP%. |
 The Mole Welcome You | When she uses Basic ATK, Skill, or Ultimate, she gains one stack of Mischievous and each stack increases her ATK by 12%. |
 Collapsing Sky | Increase her Basic ATK and Skill DMG by 20%. |
Best Relics and Planar
Here is a list of recommend Relic and Planar that can be used with Xueyi:
| Relics Set | |
| 4PC Brilliant Stars | 2PC: Increase her Quantum DMG by 10% 4PC: When she deals DMG to an enemy, ignores 10% DEF and if an enemy has Quantum Weakness, she additionally ignores 10% DEF. |
 4PC Shooting Meteor | 2PC: Increases Break Effect by 16%. 4PC: Increases her Break Effect by 16% and after she inflicts Weakness Break and regenerates 3 energy. |
 4PC Ashblazing | 2PC: Increases the DMG Dealt by follow-up attacks by 20%. 4PC: When she uses follow-up ATK, increases her ATK by 6% for every time follow-up ATK deal DMG. This effect can stack up to 8 times and last for 3 turns. This effect is removed the next time the wearer uses a follow-up attack. |
| Planar Ornament Set | |
 2PC Rutilant Arena | Increase her CRIT Rate by 8% and when her current CRIT Rate reaches 70% or higher, her Basic ATK and Skill DMG by 20%. |
 2PC Inert Salsotto | Increase her CRIT Rate by 8% and when her current CRIT Rate reaches 50% or higher, her Ultimate and follow-up attack DMG increase by 15%. |
| 2PC Talia | Increase her Break Effect by 16% and when her SPD reaches 145 or higher, her Break Effect increases by an extra 20%. |
Xueyi Best Teams
Here is the best team that is suitable for Xueyi.
Xueyi F2P Team
| DPS | Support | Support | Healer |
 Xueyi |  Yukong |  Asta |  Natasha |
Xueyi is a DPS character in this F2P team who applies Quantum DMG and with the help of Yukong and Asta who provide buff such as CRIT Rate/DMG, ATK, and SPD Xueyi will deal more additional Quantum DMG. Natasha will be a healer who supports the team to survive in a battle.
Xueyi Quantum Team
| DPS | Sub-DPS | Support | Healer |
 Seele | Xueyi |  Silverwolf |  FuXuan |
Seele is a DPS character in the team by outputs huge Quantum DMG with Silverwolf to convert enemies to Quantum Weakness and FuXuan can reduce damage as well as heal teammates.
Xueyi Abilities Priority
| 1. Ultimate | Increase Quantum DMG to a single enemy. |
| 2. Skill | Increase Quantum DMG to a single enemy. |
| 3. Talent | Increase her follow-up attack DMG |
| 4. Basic ATK | Increase her basic ATK DMG which can be upgraded last. |
End of Xueyi Build.