Book of Fuxi
Last updated 2025-07-25

Fire support. Increases all Elemental DMG but requires 1 or 2 Fire battlesuits on the team to shine.
Best paired with
Azure Empyrea.
Book of Fuxi is an unlockable ELF in Honkai Impact 3rd.
Unlock & Rank-Up
Item:
Book of Fuxi Part
Skills
ELF Skills
Fires multiple shells, dealing 550% ATK of Fire DMG against the target and restores 3 SP upon hit; CD: 2s.
ATK CD: 3.3s
Unlocked by default.
1st Skill Row
Fires multiple shells, dealing 550% ATK of Fire DMG against the target and restores 3 SP upon hit; CD: 2s.
ATK CD: 3.3s
Unlocked by default.
ELF's Basic ATK hit additionally restores 10 SP for the ELF; CD: 2s.
Unlocked by default.
ELF's Basic ATK hit has a 18% chance to deal 200% more Fire DMG; CD: 10s.
Unlocked by default.
ELF's Basic ATK hit on a Ignited target boosts ELF's Total DMG by 15% for 10s.
Unlocked by default.
2nd Skill Row




Force activates the QTE of Valkyrie(s) capable of dealing Fire DMG on the team, and summons a magic fire circle (lasts 10s) to seal enemies within, dealing 5 x 1,000% ATK of Fire DMG against them and inflicting a debuff on them to make them take 10% more All Elemental DMG.
Skill CD: 35s; SP cost: 75
Unlocked by default.




Within the next 5s after unleashing ELF's Ultimate, the whole team's QTE skills deal 15% more Total DMG.
Unlocks at




When the magic circle ends, enemies still within the AOE take 10% more Elemental DMG for 5s.
Unlocks at
3rd Skill Row




[Team-triggered] With a Valkyrie capable of dealing Fire DMG as the team leader, the whole team gains 9% Fire DMG and 6% Ice and Lightning DMG.
Unlocked by default.




ELF's initial SP increases by 40.
Unlocks at




[Team-triggered] ELF's All Elemental DMG increases by 15% when there are 2 Valkyries capable of dealing Fire DMG on the team.
Unlocks at




[Team-triggered] Team deals 6% more Elemental DMG when the team is formed by Valkyries with three different Types.
Unlocks at
4th Skill Row




When a Valkyrie performs Ultimate Evasion, the ELF restores 15 SP and provides a buff for the Valkyrie, which boosts her Fire DMG by 8% for 8s; CD: 15s.
Unlocked by default.




CD of Free Will decreases to 11s.
Unlocks at




Within the next 6s after triggering Free Will, the Valkyrie's next Charged/Combo ATK additionally deals 120% ATK of AOE Fire DMG.
Unlocks at
※Any numbers shown are for MAX level skills.
Astral Ring Skills
Unleashes Synergy Attack to instantly trigger the QTEs of Fire DMG dealers and create a magic circle that locks enemies inside for 10s. The magic circle deals 7 x 1,000% ATK of Fire DMG to enemies inside.
Unlocked by default.
1st Skill Row
Unleashes Synergy Attack to instantly trigger the QTEs of Fire DMG dealers and create a magic circle that locks enemies inside for 10s. The magic circle deals 7 x 1,000% ATK of Fire DMG to enemies inside.
Unlocked by default.
AstralOp's attacks deal 10% more Total DMG to ignited enemies.
Unlocked by default.
[Team-triggered] With 2 or more Fire DMG dealers on the team, AstralOp deals 10% more Elemental DMG.
Unlocks at
2nd Skill Row




In Astral Ring Charging state, landing an attack sends all team members into Intensity Recovery state for 1s, which restores 1 Astral Ring Intensity per 0.5s. Start a battle with 35 more Astral Ring Intensity, which applies once every 10 min in Part 2's Open World and shares a CD with other AstralOps. Enemies take 5% more Elemental DMG in Stellar Outburst state.
Unlocked by default.




During Stellar Outburst, every team member is buffed. Using QTE consumes this buff to deal 10% more Total DMG.
Unlocked by default.




During Stellar Outburst, enemies take 6% more Elemental DMG instead.
Unlocks at
3rd Skill Row




When a team member triggers Ultimate Evasion, AstralOp increases her Fire DMG by 8% for 8s. CD: 15s.
Unlocked by default.




[Team-triggered] When the leader is a Fire DMG dealer, all team members deal 5% more Fire DMG, and 3% more Ice and Lightning DMG.
Unlocked by default.




Within 6s after AstralOp triggers Free Will, if an on-field character's next Charged or Combo ATK hits, AstralOp will deal an additional 60% ATK of Fire DMG to the target and its surrounding enemies.
Unlocks at




[Team-triggered] When team members are all of different elements, they deal 3% more Elemental DMG.
Unlocks at
※Any numbers shown are for MAX level skills.
Quotes
| Menu | |||
| Action | Quote | ||
| Select ELF |
|
||
| Poke ELF |
|
||
|
|||
| Story | |||
| Section | Quote | ||
| Self Introduction |
|
||
| Time with Captain |
|
||
| Her Secret Diary |
|
||
Trivia
- In Version 7.3, she gained [Astral Ring Skills].
Other Languages
| Language | Official NameOfficial Name | Literal TranslationLiteral Translation | |
|---|---|---|---|
| English | Book of Fuxi | — | |
| Chinese (Simplified) | 苍玄之书 | Cāngxuán zhī Shū | |
| Chinese (Traditional) |
蒼玄之書 | ||
| Japanese | 伏義の書 | Fukki no Sho | Book of Fuxi |
| German | Buch von Fuxi | Book of Fuxi | |

















