Quantum
Preservation
Fu Xuan
Head of the Divination Commission
TierS
RolesSustain · Support
Release1.3
Fu Xuan is a Quantum Preservation sustain who protects the team without shields: her Matrix of Prescience redirects a large share of the damage her allies take onto herself, while boosting their Max HP and CRIT Rate. Her huge HP pool, her self-heals and a team-wide damage reduction make her one of the most reliable sustains for CRIT-based teams, even if her team healing is limited.
HP tank
Light Cones
She Already Shut Her Eyes BiS
5★
Signature and best in slot: Max HP, Energy Regeneration Rate, a DMG buff for allies and healing — ideal since she takes damage constantly.
Max HP +24% and Energy Regeneration Rate +12%; losing HP gives all allies +9% DMG for 2 turns, and each wave heals allies for 80% of their lost HP.
Moment of Victory
5★
Standard 5★: DEF, and enemies are more likely to target her, with extra DEF when she is hit.
DEF +24% and Effect Hit Rate +24%; the wearer is more likely to be attacked and gains another 24% DEF when hit until the end of their turn.
Texture of Memories
5★
Survival-focused 5★ with Effect RES and a damage-reducing shield.
Effect RES +8%; being attacked without a Shield grants a Shield of 16% of Max HP (once every 3 turns), and the wearer takes 12% less DMG while shielded.
Day One of My New Life
4★
4★ option: DEF and 8% All-Type RES for the whole team.
DEF +16%, and all allies' All-Type RES +8% after entering battle.
Landau's Choice
4★
4★ alternative: more aggro and reduced damage taken.
The wearer is more likely to be attacked and takes 16% less DMG.
Trend of the Universal Market
4★
4★ specialist for Acheron teams: each time she is hit, she Burns the attacker, and every debuff applied feeds Acheron's Slashed Dream.
DEF +16%, and being attacked has a 100% base chance to Burn the enemy for DoT equal to 40% of DEF for 2 turns.
Relics
Warrior Goddess of Sun and Thunder
×4
Prydwen's top pick: SPD, and 15% team CRIT DMG after her Ultimate heal (its 2-turn buff makes it less reliable on her).
Set effects
2pIncreases SPD by 6%.
4pWhen the wearer or their memosprite provides healing to ally targets other than themselves, the wearer gains "Gentle Rain," which lasts for 2 turn(s) and can only trigger once per turn. While the wearer has "Gentle Rain," SPD increases by 6% and all allies' CRIT DMG increases by 15%. This effect cannot stack.
Longevous Disciple
×2
Guard of Wuthering Snow
×2
Game8's top pick: maximum survivability with Max HP and damage reduction.
Set effects
2pIncreases Max HP by 12%.
2pReduces DMG taken by 8%.
Longevous Disciple
×2
Messenger Traversing Hackerspace
×2
Max HP and SPD to hit breakpoints and cycle her Ultimate faster.
Set effects
2pIncreases Max HP by 12%.
2pIncreases SPD by 6%.
Longevous Disciple
×4
Niche damage-focused option: Max HP and CRIT Rate every time she is hit.
Set effects
2pIncreases Max HP by 12%.
4pWhen the wearer is hit or has their HP consumed by an ally or themselves, their CRIT Rate increases by 8% for 2 turn(s) and up to 2 stacks.
Planar ornaments
Broken Keel
×2
Best overall: 10% CRIT DMG for the whole team once she has 30% Effect RES.
Set effects
2pIncreases the wearer's Effect RES by 10%. When the wearer's Effect RES is at 30% or higher, all allies' CRIT DMG increases by 10%.
Fleet of the Ageless
×2
Max HP and team ATK at 120 SPD, for ATK-scaling teams.
Set effects
2pIncreases the wearer's Max HP by 12%. When the wearer's SPD reaches 120 or higher, all allies' ATK increases by 8%.
Penacony, Land of the Dreams
×2
Mono-Quantum teams: 10% DMG for other Quantum allies and some Energy Regeneration.
Set effects
2pIncreases wearer's Energy Regeneration Rate by 5%. Increases DMG by 10% for all other allies that are of the same Type as the wearer.
Main stats
Body
HP%
/ DEF%
Feet
SPD
/ HP%
Planar Sphere
HP%
/ DEF%
Link Rope
Energy Regeneration Rate
/ HP%
Substat priority
1SPD
2HP%
3DEF%
4Effect RES
Stat targets
- HP: 6,500–8,000 (with the Matrix active)
- DEF: 1,400–1,600
- SPD: 134 (recommended), 143 or 160
- Energy Regeneration Rate: 19.44% (Energy Regen Link Rope)
- Effect RES: 30%+ for Broken Keel
Talent priority
Talent
Skill
Ultimate
Basic ATK
Major Trace priority: Taiyi, the Macrocosmic (A2) > Dunjia, the Metamystic (A4) > Liuren, the Sexagenary (A6). Avoid using more than one DEF% main stat: HP% main stats with DEF% substats are better.
Teams
Recommended teams
Archer mono-Quantum
Her most used team: Knowledge's CRIT Rate helps Archer, she barely uses the Skill Points he needs, and the all-Quantum lineup makes Penacony, Land of the Dreams a great pick.
Silver Wolf LV.999 Elation
A safer alternative to Huohuo in the top Elation team when enemies hit hard.
Seele mono-Quantum
Classic hypercarry: Fu Xuan's CRIT Rate and Crowd Control protection keep Seele's extra turns going.
Guide
How to play
How she works
- Matrix of Prescience (Skill). For 3 turns, her teammates transfer 65% of the damage they receive to Fu Xuan. All allies gain Knowledge: Max HP increased by 6% of Fu Xuan's Max HP and +12% CRIT Rate. Her A2 gives her 20 extra Energy when she uses her Skill while the Matrix is already active.
- Misfortune Avoidance (Talent). As long as she is standing, the whole team takes 18% less damage. When her HP drops to 50% or lower, she restores 90% of her missing HP; this self-heal starts with 1 charge and can hold up to 2.
- Ultimate (135 Energy). Quantum damage to all enemies based on her Max HP, 1 extra self-heal charge, and a small heal for all other allies (A4).
- Crowd Control protection. Her A6 lets the team resist one Crowd Control attack each time the Matrix is activated.
Rotation
- Use her Technique in the overworld: the fight starts with the Matrix already active for 2 turns.
- Recast her Skill when the Matrix is about to expire; use Basic ATKs the rest of the time to generate Skill Points.
- Use her Ultimate to heal the team and refill her self-heal charges.
Tips
- She is not a healer: her team healing only comes from her Ultimate, so she works best when allies don't lose much HP on their own.
- Stack HP% first, then DEF%: she has to survive the damage of the whole team.
- Knowledge's CRIT Rate lets your damage dealer invest more in CRIT DMG.
Strengths
- Significant team-wide damage mitigation
- Extremely durable with very high HP and her own self-heals
- Passively grants Max HP and CRIT Rate to the whole team
- Protects the team from Crowd Control with each Matrix
- Fairly Skill Point friendly
Weaknesses
- Limited team healing outside of her Ultimate
- Very hard-hitting or fast enemies can take her down, which removes the Matrix
- Needs her Traces leveled to reach her full potential
Notable dupes · Eidolon
E1
Big upgrade
Knowledge also grants +30% CRIT DMG to the whole team: a big damage boost.
E2
Solid upgrade
Once per battle, every ally struck by a killing blow while the Matrix is active survives and recovers 70% of their Max HP.
E4
Optional
5 Energy each time another ally under the Matrix is attacked.
E6
Optional
Her Ultimate deals extra damage based on the HP the team has lost. Damage only.
Community
Player builds for Fu Xuan
No shared builds yet. Be the first!
No screenshot? Create a gorgeous build card with our tool.
Updated September 25, 2026 · Version 4.5