Feixiao Build Guide – Best Relics, Light Cone & Teams (HSR 4.0)

Feixiao HSR 4.0 build: S-tier Follow-Up Attack DPS with best relics, Light Cone, team synergies & strategies for Memory of Chaos dominance.

Feixiao Build Guide – SS Tier Follow-Up Attack DPS | Honkai: Star Rail 4.0

FEIXIAO

The Lacking General

SS TIER DPS

Merlin’s Claw Unleashed

Feixiao is an exceptional 5-star Wind Hunt character who redefines Follow-Up Attack (FuA) gameplay in Honkai: Star Rail. As one of the Seven Arbiter-Generals and bearer of the title “Merlin’s Claw,” Feixiao delivers devastating single-target damage through an innovative stack-based Ultimate system that rewards team coordination and high-frequency attacks.

Her unique mechanic revolves around “Flying Aureus”—special stacks gained whenever allies attack (2 attacks = 1 stack). Upon reaching 6 stacks, Feixiao unleashes her explosive Ultimate featuring 6 rapid strikes followed by a massive finisher. What makes her extraordinary is that her entire Ultimate counts as Follow-Up Attack damage, enabling her to benefit from FuA-specific buffs while dealing boss-killing burst damage.

Feixiao’s Talent triggers an automatic Follow-Up Attack whenever allies attack enemies, creating a self-sustaining damage loop. Her Skill immediately activates this FuA while granting a 48% ATK buff for 3 turns. This SP-positive playstyle, combined with exceptional toughness damage and universal elemental advantage (Ultimate ignores Weakness Type), makes Feixiao one of the most versatile and powerful DPS units in Version 4.0—excelling in Memory of Chaos, Apocalyptic Shadow, and boss encounters.

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Best Light Cones

I Venture Forth to Hunt

⭐⭐⭐⭐⭐ Signature

Best-in-Slot: Feixiao’s signature Light Cone that synergizes perfectly with her kit. Increases CRIT Rate by 15-25% unconditionally. When using Follow-Up Attacks, gains stacks of “Luminflux” (max 2). Each stack causes Ultimate to ignore 20-36% of enemy DEF, with one stack removed at turn end. Since Feixiao’s entire Ultimate is FuA-based, this essentially provides 40-72% DEF ignore for her most damaging attack. The CRIT Rate boost also allows extremely aggressive CRIT DMG stacking. Undisputed best option.

Baptism of Pure Thought

⭐⭐⭐⭐⭐ Premium Alternative

Excellent Gacha Option: Provides massive CRIT DMG (24-40%) and additional CRIT DMG per debuff on enemy (8-12% per debuff, max 3 stacks). When using Ultimate, gains “Disputation” effect that increases DMG by 24-36% and makes Follow-Up Attacks ignore 24-36% DEF. Since Feixiao’s Ultimate IS a Follow-Up Attack, this provides excellent value. Works best in teams with debuffers like Moze or Jiaoqiu. Performs 85-90% as well as signature.

Worrisome, Blissful

⭐⭐⭐⭐⭐ Alternative

FuA Specialist Cone: Increases CRIT Rate (12-16%) and Follow-Up Attack DMG (18-30%). After launching FuA, inflicts “Tame” state on target (stacks 2 times). When allies attack Tamed enemies, their CRIT DMG increases by 12-24% per stack. Excellent for FuA-focused teams where multiple characters benefit from the Tame debuff. Topaz’s signature that works wonderfully on Feixiao.

Cruising in the Stellar Sea

⭐⭐⭐⭐⭐ F2P Option

Free Alternative: Obtainable from Herta Store. Increases CRIT Rate (8-12%) and ATK (20-40%) when wearer’s SPD reaches 120 or higher. Since Feixiao typically runs 134+ SPD, this condition is easily met. Provides solid offensive stats without gacha investment. Best F2P option that performs 70-75% as well as signature.

Swordplay

⭐⭐⭐⭐ Gacha

Budget 4-Star: For each time the wearer hits the same target, DMG dealt increases by 8-16%, stacking up to 5 times (40-80% total DMG boost). With Feixiao’s multi-hit Ultimate and frequent FuAs, this effect ramps quickly in single-target scenarios. Excellent budget option, especially at S5. Accessible and effective.

Final Victor

⭐⭐⭐⭐ F2P

Starter Option: Increases ATK (16-32%) and CRIT DMG (20-48%) when breaking enemy weakness or defeating enemy. Easy to obtain and provides solid offensive stats. Use as transitional Light Cone while farming for better options.

Light Cone Priority

Investment Recommendation: I Venture Forth to Hunt (signature) is HIGHLY recommended—the DEF ignore on Ultimate dramatically increases damage against high-DEF bosses. Baptism of Pure Thought performs nearly as well with debuffers. Cruising in the Stellar Sea is the best F2P option and viable for all content. Swordplay is excellent budget option at S5.

Best Relic Sets

The Wind-Soaring Valorous (4-Piece)

BEST-IN-SLOT RELIC SET

2-Piece Bonus: Increases ATK by 12%
4-Piece Bonus: Increases CRIT Rate by 6%. After the wearer uses Ultimate, increases their Ultimate DMG by 36% for 1 turn. This effect can also be triggered when the wearer uses a Follow-Up Attack, and using Ultimate or Follow-Up Attack again will extend the duration of this effect by 1 turn.

Why It’s Perfect: Custom-designed for Follow-Up Attack units like Feixiao. Since her ENTIRE Ultimate counts as FuA damage, the 36% Ultimate DMG bonus applies to all 7 hits of her burst. The CRIT Rate bonus helps reach optimal ratios, and the ATK% scaling amplifies her multipliers. The buff persists through her Talent’s FuAs, maintaining high damage between Ultimates. Undisputed best relic for Feixiao.

The Ashblazing Grand Duke (4-Piece)

ALTERNATIVE FUA SET

2-Piece Bonus: Increases Follow-Up Attack DMG by 20%
4-Piece Bonus: When the wearer uses Follow-Up Attacks, increases the wearer’s ATK by 6% for every time the Follow-Up Attack deals DMG, stacking up to 8 times (48% ATK) and lasting for 3 turns. This effect is removed the next time the wearer uses a Follow-Up Attack.

Why It Works: Direct FuA damage amplification works excellently with Feixiao’s kit. The stacking ATK buff ramps quickly during her Ultimate’s 7 hits, maximizing final hit damage. The buff persists across rotations thanks to frequent Talent FuAs. Performs within 5-10% of Wind-Soaring Valorous. Excellent alternative if you have better substats here.

Eagle of Twilight Line (4-Piece)

TRANSITIONAL OPTION

2-Piece Bonus: Increases Wind DMG by 10%
4-Piece Bonus: After the wearer uses their Ultimate, their action is Advanced Forward by 25%.

Why It’s Viable: Generic Wind set with action advance. While not optimized for FuA, the Wind DMG bonus applies to everything and action advance increases rotation speed. Use only as placeholder while farming better sets. Performs 20-25% below optimal sets.

Planar Ornaments

Duran, Dynasty of Running Wolves

BEST-IN-SLOT ORNAMENT

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2-Piece Bonus: When an ally uses Follow-Up Attack, the wearer receives 1 stack of Merit (max 5 stacks). Each stack increases the wearer’s Follow-Up Attack DMG by 5% (25% total). When there are 5 stacks, additionally increases CRIT DMG by 25%.

Why It’s Perfect: Specifically designed for FuA teams. Feixiao’s frequent FuAs and allies’ attacks quickly stack to maximum 25% FuA DMG + 25% CRIT DMG. Since both Feixiao’s Talent AND Ultimate are FuAs, this provides universal damage amplification. In proper FuA teams, reaches max stacks within 2-3 turns. Undisputed best ornament.

Inert Salsotto

ALTERNATIVE OPTION

2-Piece Bonus: Increases CRIT Rate by 8%. When the wearer’s current CRIT Rate reaches 50% or higher, the DMG dealt by the wearer’s Ultimate and Follow-Up Attacks increases by 15%.

Why It Works: Provides CRIT Rate and unconditional damage boost to both Ultimate and FuAs. The 50% CRIT Rate threshold is trivial to reach with proper builds. While simpler than Duran, it provides slightly lower total damage (performs 10-15% below Duran). Good alternative if substats are significantly better.

Izumo Gensei and Takama Divine Realm

TEAM-SPECIFIC OPTION

2-Piece Bonus: Increases ATK by 12%. When entering battle or using Ultimate, increases all allies’ CRIT Rate by 12% for 2 turns. This effect can only trigger once per battle start or Ultimate use.

Why It’s Situational: Provides team-wide CRIT Rate support, valuable in teams with multiple DPS units (Feixiao + Topaz/Moze). The ATK bonus benefits Feixiao directly. However, requires another Hunt character and provides less personal damage than Duran. Use only in specific dual-DPS compositions.

Optimal Main Stats & Sub-Stats

Main Stats Priority

Body
CRIT Rate / CRIT DMG

CRIT Rate if below 70%; CRIT DMG if using signature Light Cone

Feet
SPD

Target 134+ SPD for 2 turns in first cycle; higher breakpoints for more actions

Planar Sphere
Wind DMG%

Essential for maximizing all damage output

Link Rope
ATK%

Best scaling stat for all damage multipliers

Target Stats

ATK
2900+
CRIT Rate
70-85%
CRIT DMG
150%+
SPD
134-160

Stats Optimization Tips

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CRIT Balance: Maintain 1:2 CRIT Rate to CRIT DMG ratio. Signature Light Cone provides 25% CRIT Rate, allowing aggressive CRIT DMG stacking. Without signature, prioritize CRIT Rate substats to reach 70%+.

SPD Breakpoints: 134 SPD = 2 actions in first cycle. 160 SPD = 3 actions in 2 cycles. Higher SPD increases Flying Aureus generation through more Talent procs. Balance SPD with offensive stats.

Sub-Stats Focus: CRIT Rate = CRIT DMG > ATK% > SPD. Avoid Break Effect entirely—Feixiao is pure CRIT-based DPS. Every substat should contribute to burst damage.

Best Team Compositions

⚡ Premium FuA Core (Best Team)

Feixiao (DPS) Robin Topaz & Numby Aventurine

The Ultimate FuA Team: This is Feixiao’s absolute best composition and the premier Follow-Up Attack team in the game. Robin is THE perfect support—her Ultimate grants team-wide 100% action advance, massive ATK buff (228-736 flat ATK), and 25% CRIT DMG for all FuAs. Her skill provides additional ATK% and DMG%, while her concerto state regenerates energy from ally attacks.

Topaz & Numby synergize perfectly with Feixiao. Topaz marks enemies, making them receive 50% increased FuA damage—directly amplifying Feixiao’s Talent and Ultimate. Numby’s constant FuAs rapidly build Flying Aureus stacks (2 attacks = 1 stack), while Feixiao’s FuAs advance Numby’s action. This creates a self-sustaining damage loop.

Aventurine provides shielding, CRIT DMG vulnerability debuff (10%) via Ultimate, and his own FuAs that contribute to Flying Aureus generation. His shields trigger when allies with his protection are attacked OR when allies use FuAs—meaning this team constantly refreshes his shields. He’s completely SP-positive, using only Basic ATKs.

Why It Dominates: Every character contributes FuAs to accelerate Feixiao’s Ultimate. Robin’s team-wide buffs amplify everyone’s damage. Topaz’s vulnerability marking creates multiplicative scaling. Aventurine ensures survival while contributing damage. Clears all endgame content with maximum efficiency. This is THE meta FuA team.

🌪️ F2P Powerhouse

Feixiao (DPS) March 7th (Hunt) Remembrance TB Gallagher

Highly Accessible Excellence: Remarkably effective F2P team using entirely free characters. March 7th (Hunt) is free from story and synergizes beautifully with Feixiao. When March designates Feixiao as “Shifu,” she gains CRIT DMG bonus and launches coordinated FuAs whenever Feixiao attacks. Since both trigger each other’s FuAs, they can chain 4 consecutive Follow-Up Attacks!

March’s “Shifu” effect also grants Feixiao 10% SPD, helping reach important breakpoints. Her own frequent attacks rapidly build Flying Aureus stacks. The synergy is bidirectional—each character makes the other stronger.

Remembrance Trailblazer (free from story) provides CRIT DMG buffs and True DMG through Mem’s Support. The True DMG procs on each of Feixiao’s Ultimate hits, dramatically amplifying total damage. RMC’s action advance on allies also accelerates rotation speed.

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Gallagher (free from events) provides healing, Break efficiency, and is completely SP-positive. His Besotted state heals allies when they attack, synergizing with Feixiao’s high attack frequency. He can also contribute Break damage against toughness bars.

Budget-Friendly Power: Perfect for new players or F2P accounts. Despite using no premium characters, this team clears Memory of Chaos, Apocalyptic Shadow, and all story content comfortably. March + Feixiao synergy alone carries performance.

🎯 Moze Assassination Squad

Feixiao (DPS) Moze Robin Aventurine / Lingsha

Debuff-Amplified Destruction: Moze (4-star released with Feixiao) provides exceptional synergy through his “Prey” marking mechanic. When Moze marks an enemy as Prey, allies deal 25% increased FuA DMG to that target AND gain 40% CRIT DMG against it. Since Feixiao’s entire damage output is FuAs, this is massive multiplicative scaling.

Moze launches coordinated FuAs whenever allies attack his Prey target, rapidly stacking Flying Aureus. His “Departed” state (invisible on field) prevents him from being targeted, effectively giving the team 3v4 survivability advantage. He’s SP-neutral, using Basic ATKs between Prey applications.

Robin’s buffs amplify both Feixiao and Moze’s damage. Her Ultimate’s action advance ensures optimal rotation timing. Aventurine provides standard FuA sustain benefits. Lingsha (alternative sustain) offers AoE healing, Break support, and her own FuAs through Fuyuan, making her excellent in multi-wave content where Feixiao needs AoE supplementation.

When to Use: Boss fights, Apocalyptic Shadow, high-pressure single-target scenarios. The debuff stacking (Moze’s 25% FuA DMG + 40% CRIT DMG + Aventurine’s 10% CRIT DMG vulnerability) creates disgusting damage numbers. Moze is also a 4-star, making this more accessible than Topaz teams.

💎 Dual DPS Composition

Feixiao (DPS) Topaz & Numby (Sub-DPS) Robin Aventurine / Huohuo

Double Damage Dealers: Instead of pure hypercarry, this team splits damage between Feixiao and Topaz for maximum total team DPS. Topaz is uniquely suited as Feixiao’s partner—both are Hunt characters who trigger each other’s mechanics bidirectionally.

Topaz’s FuA DMG vulnerability marking amplifies Feixiao’s damage. Feixiao’s constant FuAs advance Numby’s action, increasing Topaz’s damage. Both characters rapidly charge each other’s Ultimates. This creates a multiplicative feedback loop where each DPS makes the other stronger.

Robin excels in dual-DPS teams more than hypercarry—her ATK buff benefits both damage dealers, her CRIT DMG bonus applies to all FuAs, and her Ultimate advances everyone simultaneously. Huohuo (alternative sustain) provides energy regeneration to accelerate both Feixiao’s and Topaz’s Ultimate frequency, plus 40% ATK buff from her Ultimate.

Strength: Highest total team damage output. Extremely consistent—if one DPS Ultimate is on cooldown, the other covers. Excels in Memory of Chaos where both sides need clearing. Slightly more SP-hungry than pure hypercarry but Robin compensates with SP-positive gameplay.

🌟 Action Advance Hypercarry

Feixiao (DPS) Sunday / Bronya Asta / Tingyun Aventurine / Gallagher

Traditional Hypercarry Setup: While less optimal than FuA teams, this composition still performs excellently. Sunday provides massive CRIT DMG buffs (80%+) and 100% action advance with Ultimate. His Skill also advances action while buffing. Sunday is SP-neutral with signature Light Cone.

Bronya offers frontloaded DMG amplification (66-132% DMG increase) and 100% action advance. Build Bronya at 160+ SPD while Feixiao stays at 159 SPD (must be 1 point slower). This creates Bronya → Feixiao → Bronya loop for constant action manipulation.

Asta (free 4-star) provides ATK% buff, SPD buff, and Fire Weakness implant. She’s SP-positive, using Basic ATKs for charging. Tingyun offers 50-60% ATK buff and 50 energy restoration—except Feixiao uses Flying Aureus, not energy, making Tingyun’s Ultimate mostly wasted. Still provides solid ATK scaling and is SP-positive.

Trade-Offs: This team generates Flying Aureus slower than FuA comps (fewer ally attacks). However, the action advances and massive buff stacking compensate through sheer damage per Ultimate cast. Use if you lack Robin, Topaz, or prefer traditional hypercarry gameplay.

🔮 Version 4.0+ Meta (Future-Proof)

Feixiao (DPS) Cipher Tribbie / Robin Aventurine / Hyacine

Next-Generation Setup: Cipher (4.0 Nihility) launches extremely frequent FuAs while providing 40% increased DMG taken aura to all enemies. She records team damage throughout the fight and unleashes devastating burst Ultimates. Her rapid attack frequency perfectly feeds Flying Aureus generation.

Tribbie provides All-Type RES PEN (20-30%) and 30% increased DMG taken debuff via Ultimate. Her frequent FuAs contribute to Flying Aureus stacking while her AoE damage supplements Feixiao’s single-target focus. The RES PEN is particularly valuable against high-resistance endgame bosses.

Hyacine (Version 3.3 Remembrance healer) provides sustain while her Memosprite “Little Ica” launches additional actions. Both Hyacine and Little Ica have high SPD (170+), resulting in many hits per cycle. First Remembrance path healer, breaking previous limitations.

Investment Timeline: Cipher available now in 4.0. Hyacine releases in 3.3. This team represents the theoretical peak of Feixiao’s potential with upcoming character synergies. Monitor announcements and community testing. Excellent long-term investment for Feixiao mains.

Team Building Guidelines

Core Principle: Feixiao needs high-frequency attacks to generate Flying Aureus stacks. Prioritize characters with FuAs or multiple hits per turn. Every ally attack brings her closer to Ultimate.

Support Priority: Robin > Topaz (FuA damage) > Moze (debuffs) > Action advance (Sunday/Bronya) > ATK buffers (Tingyun/Asta).

Sustain Options: Aventurine (FuA contribution + shields) > Lingsha (AoE + FuAs) > Huohuo (energy/ATK buffs) > Gallagher (Break support + free) > Luocha (pure healing).

SP Management: Feixiao is SP-positive (uses Skill every 3 turns for buff, otherwise Basic ATK). Pair with SP-positive or neutral supports. Avoid multiple SP-hungry characters.

Trace Priority & Leveling Order

Leveling Priority

  • Talent (Highest Priority)
    Level this FIRST to 10. Feixiao’s Talent governs her Follow-Up Attack multiplier (55% → 110% ATK), Flying Aureus generation rate, and the crucial 30% → 60% DMG buff that triggers when using Talent FuA. This passive damage increase lasts 2 turns and dramatically affects total damage output. Most impactful trace by far.
  • Ultimate (Second Priority)
    Level to 10 after Talent. Increases all Ultimate multipliers: Boltsunder Blitz (36% → 60% ATK), Waraxe Skyward (36% → 60% ATK), and final hit (96% → 160% ATK). The total Ultimate damage scales from ~400% → ~700% ATK with leveling. Essential for burst damage.
  • Skill (Third Priority)
    Level to 10 next. Increases Skill multiplier (100% → 200% ATK) and more importantly improves the 48% ATK buff duration and effectiveness. Since you use Skill every ~3 turns for the buff, this affects sustained damage. Less critical than Talent/Ultimate but still valuable.
  • Basic ATK (Lowest Priority)
    Level last to 6-8 (or 10 if resources permit). Rarely used in optimal gameplay—Feixiao primarily uses Skill for buffs, then waits for Talent FuAs and Ultimate. Basic ATK is filler for SP generation. Save materials by keeping this lower priority.

Major Traces (Unlock All Immediately!)

Baihu Fist (A2) – ESSENTIAL

Most Critical Trace: At battle start, gains 3 Flying Aureus stacks. If no FuA was launched via Talent in the previous turn, counts as 1 toward Flying Aureus generation. This is MANDATORY—without it, Feixiao starts from zero stacks and needs 12 ally attacks before first Ultimate (turn 5-6). With A2, she only needs 6 attacks (turn 2-3 Ultimate). The failsafe generation also prevents dead turns. Unlock immediately!

Moon Rage (A4) – GAME-CHANGING

Defines Feixiao’s Identity: Increases All-Type RES PEN of Ultimate DMG by 20%. Talent’s Follow-Up Attack is ALSO considered Ultimate DMG and its multiplier increases by 140% (55% → 261% effective multiplier!). This trace transforms Feixiao’s Talent from supplementary damage to a devastating secondary nuke. It also enables her Ultimate to bypass high-resistance enemies. Absolutely essential.

Thundering Ire (A6)

When using Skill, ATK increases by 48% for 3 turns. This is Feixiao’s self-buff mechanic that makes her Skill worth using despite being SP-positive. The 48% ATK boost is massive and applies to all subsequent FuAs and Ultimate within the buff window. Time Skill usage to ensure buff is active before Ultimate casts. Very important trace.

Resource Management

Optimal Path: Unlock ALL Major Traces immediately (especially A2 and A4—they’re not optional). Then max Talent first (FuA multiplier + DMG buff), then Ultimate (burst damage), then Skill (self-buff), finally Basic ATK (filler).

Critical Note: A2 and A4 traces fundamentally change how Feixiao functions. Without them, her Ultimate frequency drops by 40% and Talent FuA damage drops by 60%. These aren’t luxury upgrades—they’re core mechanics. Prioritize unlocking before even leveling abilities!

Gameplay Guide & Mechanics

Understanding Flying Aureus System

Feixiao uses a unique energy mechanic instead of traditional energy:

  • Gains 1 Flying Aureus stack for every 2 attacks by ally targets (not Feixiao’s own attacks)
  • Can store maximum 13 stacks (indicator shows 12 but can hold 12 + 1 additional)
  • Ultimate costs 6 stacks to activate (can hold 2+ Ultimates worth of energy)
  • Attacks from Feixiao’s Ultimate do NOT count toward Flying Aureus generation
  • Starts battle with 3 stacks (A2 Trace) + 1 from Technique = 4 stacks immediately
  • If no Talent FuA launched previous turn, automatically gains 1 stack (A2 failsafe)
  • Strategy: Can save Ultimate to 12 stacks, then unleash back-to-back Ultimates for burst windows

Follow-Up Attack Mechanics

Talent FuA Trigger Conditions:

  • Activates after any ally attacks an enemy target (not just FuAs—ANY attack counts)
  • Targets the “primary target” attacked by ally (specific enemy attacked)
  • If primary target dies, FuA redirects to random remaining enemy
  • Can only trigger ONCE per Feixiao’s turn cycle (resets at start of Feixiao’s turn)
  • Does NOT consume this trigger when using Skill (Skill FuA is “free” bonus)
  • Grants 60% DMG increase for 2 turns when triggered (stacks with subsequent FuAs)
  • With A4 Trace: Talent FuA counts as Ultimate DMG and deals 261% ATK (not base 110%)

Ultimate Mechanics

When Ultimate Activates (6 Flying Aureus stacks):

  • Ignores Weakness Type: Can reduce toughness of ANY element enemy, not just Wind-weak
  • Break Efficiency: If enemy NOT weakness broken, gains 100% Break Efficiency during Ultimate
  • Two Attack Patterns: Alternates between Boltsunder Blitz and Waraxe Skyward for 6 hits total
    • Boltsunder Blitz: 60% ATK. If target IS weakness broken, multiplier increases to 90% ATK
    • Waraxe Skyward: 60% ATK. If target NOT weakness broken, multiplier increases to 90% ATK
  • Final Hit: After 6 alternating strikes, deals massive 160% ATK finisher
  • Total Damage: ~700% ATK (6 hits at 60-90% + 160% finisher) to single target
  • ENTIRE Ultimate counts as Follow-Up Attack damage—benefits from FuA buffs!

Optimal Rotation Strategy

Pre-Battle (Always Use Technique!):

  1. Activate Technique for “Onrush” state (20 seconds, increased movement)
  2. Pull multiple enemies if possible (Technique DMG increases per additional enemy)
  3. Enter battle: guaranteed CRIT AoE damage + 1 Flying Aureus (total 4 with A2)
  4. This enables turn 2 Ultimate instead of turn 4-5!

Opening Rotation:

  1. Feixiao uses Skill (48% ATK buff for 3 turns + immediate Talent FuA + DMG buff)
  2. Robin/Support applies buffs and attacks (generates Flying Aureus)
  3. Topaz/Moze attacks (generates Flying Aureus + their FuAs trigger Feixiao’s Talent FuA)
  4. By turn 2, Feixiao has 6+ stacks → Ultimate ready
  5. Robin Ultimate → team action advance → Feixiao immediately Ultimates
  6. Ultimate hits 7 times, each triggering effects (Mem’s True DMG, relic bonuses, etc.)

Sustained Rotation (After First Ultimate):

  1. Feixiao uses Basic ATK (generates 1 SP, allows allies to consume for attacks)
  2. Allies attack frequently (Robin concerto, Topaz/Moze FuAs, sustain actions)
  3. Every 2 ally attacks = 1 Flying Aureus stack
  4. Feixiao’s Talent FuA triggers once per cycle when allies attack
  5. At 9-10 stacks, use Skill to refresh 48% ATK buff
  6. At 12 stacks, wait for buff window, then Ultimate
  7. Repeat cycle—with proper team, can Ultimate every 2-3 Feixiao turns

Advanced Tip: You can “bank” Flying Aureus stacks to 12+1 and delay Ultimate usage until optimal moment (all buffs active, enemy setup complete). This allows strategic burst timing rather than immediate Ultimate usage. Don’t waste Ultimates on overkill—save for priority targets.

Technique Usage

Always Start With Technique:

  • Grants “Onrush” state: 20 seconds, 50% movement speed, pulls enemies within range
  • Can pull multiple enemies for AoE entry damage (scales with enemy count)
  • Entering battle: deals 200% ATK Wind DMG to all enemies (GUARANTEED CRIT)
  • For each additional enemy pulled beyond first, increases DMG by 100% (max 1000% increase!)
  • Grants 1 Flying Aureus immediately (combined with A2’s 3 stacks = 4 total)
  • The AoE clear helps in multi-wave content where Feixiao lacks native AoE

Common Mistakes to Avoid

Don’t forget Technique—missing that 1 Flying Aureus delays first Ultimate by full turn

Don’t spam Skill every turn—use it every 3 turns to maintain 48% ATK buff only

Don’t Ultimate immediately at 6 stacks if buffs aren’t active—wait for optimal window

Don’t build Feixiao with Break Effect—she’s pure CRIT DPS, not Break DPS

Do use Talent FuA to reposition damage if primary target dies (attacks random enemy)

Do track Flying Aureus carefully—can store 12+1 for back-to-back Ultimates

Do coordinate team attacks right before Feixiao’s turn to maximize Talent FuA procs

Eidolon Guide

Eidolon Priority & Value

E0 (Base): Already top-tier and fully functional. Feixiao is exceptional at E0—all eidolons are luxury upgrades. F2P players should absolutely stop here. She clears all endgame content comfortably without constellations.

E1: In Talent’s effect, for every 1 FuA launched by ally targets, Feixiao gains 1 Flying Aureus (can trigger 6 times per turn). Previously: 2 attacks = 1 stack. Now: 1 FuA = 1 stack + 2 regular attacks = 1 stack. DOUBLES Ultimate frequency in FuA teams! Quality-of-life and damage increase through more Ultimate casts. Value: 25-30% overall DPS increase in FuA teams.

E2: Ultimate level +2 (max 15). Standard level increase eidolon. Increases all Ultimate multipliers by ~20%. Solid but unexciting. Value: 15-20% Ultimate DMG increase.

E4: Talent FuA has Toughness Reduction increased by 100% (doubles Break damage). When it launches, increases SPD by 8% for 2 turns. The SPD boost helps reach breakpoints while Break damage supplements total damage. Decent power spike. Value: 12-15% overall DPS increase plus Break utility.

E6: Ultimate DMG gains 20% All-Type RES PEN (stacks with A4’s 20% = 40% total). Talent FuA is ALSO considered Ultimate DMG (already true from A4). Talent FuA multiplier increases by 140% AGAIN (261% → 623% effective!). Transforms Talent FuA into nuke. Whale territory but massive power spike. Value: 40-50% overall DPS increase.

Investment Recommendation: E0 is complete. E1 is EXCELLENT value for FuA team players—doubles Ultimate frequency. E2 is filler. E4 is moderate. E6 is luxury whale territory. The power curve: E0 (complete) → E1 (big jump) → E2 (filler) → E4 (moderate) → E6 (massive but expensive).

Pull Priority: Light Cone vs Eidolons

For Most Players: E0S1 (Character + Signature Light Cone) > E1S0. The signature Light Cone’s DEF ignore is more impactful than E1 for immediate performance.

F2P Focused: E0S0 with Cruising in the Stellar Sea is completely viable for all content. Save pulls for Robin or Topaz instead.

Dolphins: E0S1 is the sweet spot. Excellent performance without breaking bank. Alternatively E1S0 if you heavily favor FuA teams.

Whales: E1S1 offers best value. E6 is luxury for devoted Feixiao mains only—diminishing returns beyond E1.

Strengths & Weaknesses

⚡ Strengths

  • Exceptional Single-Target DPS: Among highest single-target burst damage in the game—can delete bosses
  • SP-Positive Economy: Uses Skill every ~3 turns, otherwise Basic ATK. Generates SP for team
  • Unique Ultimate System: Flying Aureus allows stockpiling energy for strategic burst timing
  • Universal Element Advantage: Ultimate ignores Weakness Type and reduces toughness of ANY element
  • Entire Ultimate is FuA: Benefits from all FuA buffs despite being massive burst nuke
  • Team Synergy: Creates multiplicative loops with Robin, Topaz, Moze, Aventurine
  • F2P Friendly: Strong with March Hunt, Gallagher, free Light Cones
  • Flexible Teams: Works in pure FuA, dual DPS, or hypercarry compositions
  • Boss Killer: Dominates Apocalyptic Shadow and Memory of Chaos elite fights

⚠️ Weaknesses

  • Limited AoE: Struggles in Pure Fiction and massive mob scenarios—single-target specialist
  • Team Dependent: Needs high-frequency attackers to generate Flying Aureus efficiently
  • Relic Quality Dependent: Requires good CRIT substats to reach full potential
  • Ultimate Timing: Can’t use Ultimate on demand—must wait for 6 stacks from allies
  • Light Cone Dependency: Signature provides 72% DEF ignore—performs noticeably worse without it
  • Competes with Robin: Robin is her best support but also wanted by many teams
  • Not Beginner-Friendly: Requires understanding Flying Aureus mechanics and team coordination
  • SPD Tuning Matters: Needs proper speed breakpoints (134+) for optimal performance

Meta Position & Character Comparison

Feixiao vs Other Top DPS

vs Acheron (Lightning Nihility): Acheron has more flexible team building and consistent performance. Feixiao has higher single-target burst ceiling with optimal FuA teams. Acheron works with debuff stackers; Feixiao needs high-frequency attackers. Both dominate single-target but Acheron is more accessible. Feixiao requires specific supports (Robin) while Acheron is more forgiving.

vs Phainon (Physical Destruction): Phainon has better self-sustain and simpler execution. Feixiao has higher damage output with proper FuA team. Phainon works in sustainless comps; Feixiao typically needs sustain. Both excel at boss killing but Phainon is more self-sufficient while Feixiao rewards team coordination.

vs Dr. Ratio (Imaginary Hunt): Ratio was free and many players have him built. Feixiao significantly outperforms Ratio in raw damage (30-40% higher) with proper investment. Ratio requires debuffs; Feixiao just needs attacks. Ratio is more accessible; Feixiao is strictly better when properly supported. If you have Ratio, Feixiao is still worth pulling for endgame.

vs Firefly (Fire Destruction): Completely different archetypes. Firefly uses Break mechanics; Feixiao uses CRIT. Firefly is easier to build and execute. Feixiao has higher ceiling with perfect play. Firefly better for AoE; Feixiao better for single-target. Both are top-tier but for different content types.

Should You Pull Feixiao?

✅ Pull if:

  • You need a Wind DPS or single-target boss killer
  • You own Robin (her best support) or can get Robin
  • You have or want Topaz, Moze, or Aventurine for FuA teams
  • You enjoy Follow-Up Attack playstyle and team coordination
  • You want SP-positive DPS (rare trait for top-tier damage dealers)
  • You need Apocalyptic Shadow or Memory of Chaos specialist
  • You have good CRIT relics ready to invest

⚠️ Consider Skipping if:

  • You don’t own Robin and cannot get her (limits ceiling significantly)
  • You already have strong single-target DPS (Acheron, Phainon, etc.)
  • You prefer AoE-focused characters for Pure Fiction
  • You lack FuA support characters entirely
  • You’re saving for upcoming supports or other meta units
  • Your relic quality is low (she needs 70%+ CRIT Rate)
  • You prefer simple plug-and-play over team coordination

Final Verdict: Feixiao is an exceptional limited 5-star DPS who dominates single-target scenarios and enables powerful FuA team compositions. Her SP-positive economy, universal element advantage, and explosive burst damage make her a safe pull for most accounts—especially if you have or plan to get Robin. While she requires specific team compositions to reach peak performance, her F2P options (March Hunt, Gallagher) are surprisingly strong. Rated SS tier for excellent reason—one of the best single-target DPS releases in HSR history. A must-pull for boss content enthusiasts and FuA team builders.

Last Updated: February 2026

Honkai: Star Rail Version 4.0 • Feixiao Build Guide

This guide is based on current game data and community testing. Stats and meta may shift with future patches.

“The wind follows the swift. Strike without hesitation!” ⚡

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