Honkai Star Rail Aglaea Speed Build: 134/160 Guide 2026

Understanding the Speed Tech Philosophy

This strategy creates intentional speed gaps between DPS and support to exploit Action Value mechanics. Aglaea (5-star Lightning Remembrance DPS) summons Garmentmaker memosprite with initial SPD equal to 35% of her SPD. Sunday (5-star Imaginary Harmony) provides 30% DMG boost (50% extra for summons) and Beatified status granting CRIT DMG +30% of Sunday's CRIT DMG +12% for 3 turns.

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Three Mechanical Advantages

Garmentmaker Scaling: Gains +55 flat SPD per stack up to 6 stacks (max +330 SPD), eventually outpacing team members regardless of Aglaea's base speed.

Sunday's Action Advance: Skill provides 100% Action Advance to allies and summons, effectively doubling Garmentmaker's action frequency.

Supreme Stance Timer: Operates on 100 SPD countdown with 15% SPD boost per stack up to 6 stacks (90% total), creating damage windows aligned with Sunday's buff cycles.

Joint Slash by a Thousandfold Kiss deals 200% Aglaea ATK + 200% Garmentmaker ATK to single targets with 90% splash. Keeping Aglaea slow redirects substats from SPD to CRIT DMG and ATK%, directly amplifying this combined damage.

Action Value System Foundation

AV = 10,000 / (Character SPD + SPD Buffs). Lower AV acts first.

• 134 SPD Aglaea: 74.63 AV per action, securing 2 turns in cycles 1 and 4 over 5 cycles
• 160 SPD Sunday: 62.5 AV per action, obtaining 2 turns in cycles 1, 2, and 4

Sunday's frequent actions maintain his Talent's +20% CRIT Rate buff (3 turns) and Skill's DMG boost (2 turns) with minimal downtime. Aglaea's slower pace ensures she acts during optimal buff windows.

The 100% Action Advance bypasses normal AV calculations—when Sunday uses Skill on Garmentmaker, the memosprite immediately takes its next turn regardless of current AV position.

Why Slow DPS + Fast Support Wins

Traditional builds distribute 140-145 SPD evenly, wasting substats on DPS while creating buff desynchronization. Slow Aglaea at 134 SPD frees 15-20 substat rolls for CRIT DMG and ATK%. With targets of 100% CRIT Rate, 210% CRIT DMG, and 2600+ ATK, these redirected substats translate to 8-12% final damage increases.

Hyperspeed Sunday at 160 SPD acts 28% more frequently than standard 125 SPD supports. This ensures Sunday's Ultimate (restoring 20% max Energy minimum 40) charges consistently, maintaining Beatified CRIT DMG buff. With Sunday targeting 200%+ CRIT DMG, Beatified grants Aglaea an additional 60%+ CRIT DMG during burst phases.

Aglaea Speed Breakpoints: The Science of Staying Slow

Target Speed Range: 120-134 SPD

134 SPD ensures Aglaea takes 2 actions in cycles 1 and 4 within standard 5-cycle Memory of Chaos rotations. Below 120 SPD risks single actions in critical cycles, limiting Ultimate availability (350 Energy cost). Her Skill restores 50% Garmentmaker Max HP or summons it while providing 30 Energy; Garmentmaker's disappearance refunds 20 Energy.

At 134 SPD (74.63 AV), Aglaea maintains predictable turn positioning. Sunday at 160 SPD (62.5 AV) acts between her turns, applying buffs immediately before damage windows.

Build Path: Aglaea's Level 80 base SPD is 102, requiring +32 SPD from equipment. Speed Boots provide +25 SPD at max level, leaving only +7 SPD needed from substats—achievable with 3-4 substat rolls.

How Slow Speed Maximizes Damage Windows

Garmentmaker starts at 35% of Aglaea's SPD (46.9 SPD at 134 Aglaea SPD) but gains +55 flat SPD per stack up to 6 stacks. At maximum stacks, Garmentmaker reaches 376.9 SPD, drastically outpacing all team members.

This speed independence means investing in Aglaea's SPD beyond breakpoints provides diminishing returns. 134 SPD allows Aglaea to reach 100% CRIT Rate and 210% CRIT DMG with proper substats, directly amplifying the 200% Aglaea ATK portion of Joint Slash. Combined with Sunday's Beatified buff adding 60%+ CRIT DMG, total CRIT DMG exceeds 270% during burst windows.

Supreme Stance's 100 SPD countdown operates independently of Aglaea's action frequency. The 15% SPD boost per stack (90% total at 6 stacks) applies multiplicatively to both Aglaea and Garmentmaker, creating synchronized burst phases aligned with Sunday's buff cycles.

Common Mistakes

Too Fast (145+ SPD): Creates buff desynchronization. Aglaea may act before Sunday in certain cycles, attacking without DMG boost or CRIT Rate buffs. The 12.5 AV difference between 134 SPD (74.63 AV) and 145 SPD (68.97 AV) accumulates over cycles, shifting turn order unpredictably.

Too Slow (<120 SPD): At 115 SPD (86.96 AV), Aglaea loses turns in cycles 2 and 3, reducing Ultimate availability and Garmentmaker summon frequency. Since Garmentmaker's Max HP equals 66% Aglaea Max HP + 720, fewer summons mean reduced total damage.

ATK% Boots Error: Main stat priority is Body CRIT Rate/DMG, Feet SPD, Sphere Lightning DMG%, Rope Energy Regen%. SPD Boots are mandatory unless substats provide +32 SPD across other pieces—statistically unlikely.

Sunday Hyperspeed Breakpoints: Hitting 160+ SPD

The Critical 160 SPD Breakpoint

At 160 SPD (62.5 AV per action), Sunday achieves optimal action frequency for permanent buff coverage. His Skill's 30% DMG boost lasts 2 turns; Talent's +20% CRIT Rate buff lasts 3 turns. With 2 actions in critical cycles, Sunday refreshes buffs before expiration.

Sunday's Level 80 base SPD is 96, requiring +64 SPD from equipment. SPD Boots provide +25 SPD, leaving +39 SPD needed from substats and set bonuses. 4-piece Sacerdos' Relived Ordeal grants +6% SPD (approximately +6 SPD at 96 base), reducing substat requirements to +33 SPD—achievable with 11-12 substat rolls.

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160 SPD optimizes energy rotation. Sunday starts with +25 Energy; Ultimate costs 120 Energy. His Skill generates 30 Energy, requiring 4 Skill uses to charge Ultimate. At 160 SPD with 2 actions in early cycles, Sunday reaches first Ultimate by cycle 2-3, applying Beatified during Aglaea's critical damage windows.

Advanced Breakpoints: 165+ SPD

165 SPD (60.61 AV) provides marginal improvements in extended battles beyond 5 cycles (Pure Fiction, Apocalyptic Shadow). Requires +69 total SPD (+25 Boots, +6 set bonus, +38 substats), demanding 13-14 perfect SPD rolls.

Optimal approach: prioritize 160 SPD first, then allocate remaining substats to CRIT DMG until reaching 200%+. Only pursue 165+ SPD after achieving both thresholds with exceptionally well-rolled relics.

Speed Buffs and Team Calculations

If running Sunday with Asta (who provides up to +50 SPD from Ultimate), the 160 SPD target may be achievable with lower base SPD. However, relying on conditional buffs creates rotation inconsistencies. If Asta's Ultimate isn't available in cycle 1, Sunday's turn order shifts unpredictably.

Safest approach: maintain 160 SPD from relics alone, treating team buffs as bonus action frequency.

Broken Keel ornament (Sunday's optimal choice) requires 30% Effect RES threshold for +10% team CRIT DMG. Aim for 30% Effect RES through main stats while concentrating remaining substats on SPD and CRIT DMG.

Optimal Relic Builds: Aglaea (Slow Configuration)

Main Stat Priority and Set Selection

Sets: 4-piece Hero of Triumphant Song (+12% ATK, +6% memosprite SPD, +30% CRIT DMG for 2 turns after memosprite attacks) + 2-piece The Wondrous BananAmusement Park (+16% CRIT DMG baseline, +32% when attacking summoned targets).

Main Stats:

• Body: CRIT Rate or CRIT DMG (depending on substats)
• Feet: SPD
• Sphere: Lightning DMG%
• Rope: Energy Regen%

Energy Regen% Rope is mandatory due to 350 Energy Ultimate cost. With 19.44% Energy Regen at max level, combined with Garmentmaker's 20 Energy refund and Skill's 30 Energy generation, Aglaea achieves consistent 2-Ultimate rotations in 5-cycle battles.

BananAmusement Park's conditional +32% CRIT DMG maintains near-permanent uptime since Garmentmaker counts as a summon, effectively granting +48% CRIT DMG total.

Substat Target Values

Priority: SPD to 134 > CRIT Rate to 100% > CRIT DMG to 210% > ATK% to 2600+ total ATK

CRIT Rate: Requires 60-70% from substats after accounting for Sunday's +20% CRIT Rate buff. Each roll provides 2.9-3.9%, requiring 15-20 rolls. Non-negotiable—CRIT Rate below 100% introduces damage variance.

CRIT DMG: 210% target combines base 50%, +62% from CRIT DMG Body, +48% from BananAmusement Park, and +50% from substats. Each roll provides 5.8-7.8%, requiring 7-9 rolls. With Sunday's Beatified adding 60%+, total CRIT DMG exceeds 270% during burst.

ATK%: With Level 80 base ATK at 698 and Hero of Triumphant Song providing +12% ATK, reaching 2600+ requires approximately +180% ATK from substats and main stats—achievable with 12-15 ATK% rolls.

Trace Priority and Materials

Trace Priority: Ultimate > Skill > Talent > Basic ATK

Ascension Materials: Fear-Stomped Flesh x15, Courage-Torn Chest x15, Glory-Aspersed Torso x15, Nail of the Beast Coffin x65, Credits 308,000

Trace Materials: Bija of Consciousness x18, Fear-Stomped Flesh x41, Seedling of Manas x69, Courage-Torn Chest x56, Flower of Alaya x139, Glory-Aspersed Torso x58, Auspice Sliver x12, Tracks of Destiny x8, Credits 3,000,000

Optimal Relic Builds: Sunday (Hyperspeed Configuration)

Main Stat Priority

Sets: 4-piece Sacerdos' Relived Ordeal (+6% SPD, permanent single-target CRIT DMG buff) + 2-piece Broken Keel (+10% team CRIT DMG at 30% Effect RES)

Main Stats:

• Body: CRIT DMG (mandatory—Beatified scales with Sunday's CRIT DMG)
• Feet: SPD
• Sphere: HP%/DEF%
• Rope: Energy Regen%

Energy Regen% Rope ensures consistent Ultimate availability. With 19.44% Energy Regen, Sunday charges Ultimate in 3 Skills plus minor energy from hits, enabling first Ultimate by cycle 2-3.

Sphere uses HP%/DEF% to meet Broken Keel's 30% Effect RES requirement while providing survivability. Sunday's Level 80 base stats (HP 1241, DEF 533) are relatively fragile.

Substat Target Values

Priority: CRIT DMG to 200%+ > SPD to 160 > Effect RES to 30%+ > HP%

CRIT DMG: Requires 75-80% from substats after +62% CRIT DMG Body. Each roll provides 5.8-7.8%, requiring 10-12 rolls. At 200% Sunday CRIT DMG, Beatified grants +72% CRIT DMG to allies, effectively doubling Aglaea's CRIT DMG during Ultimate windows.

SPD: 160 SPD needs +64 total (+25 Boots, +6 set bonus, +33 substats). Each roll provides 2-3 SPD, requiring 11-12 rolls.

Effect RES: 30% activates Broken Keel's +10% team CRIT DMG. Aim for 10-15% from Sphere/Rope substats, then supplement with 2-3 rolls on other pieces.

Trace Priority and Materials

Trace Priority: Skill > Ultimate > Talent > Basic ATK

Ascension Materials: Tatters of Thought x15, Fragments of Impression x15, Shards of Desires x15, Chordal Mirage x65, Credits 308,000

Trace Materials: Firmament Note x18, Tatters of Thought x41, Celestial Section x69, Fragments of Impression x56, Heavenly Melody x139, Shards of Desires x58, Lost Echo of the Shared Wish x12, Tracks of Destiny x8, Credits 3,000,000

Team Composition and Rotation Mechanics

Ideal 4-Character Team Structure

Premium Team: Aglaea + Sunday + Robin + Huohuo

Robin contributes additional DMG% buffs and CRIT DMG through Ultimate, stacking multiplicatively with Sunday's buffs. Her Ultimate grants team-wide Action Advance, further amplifying speed tech. Robin should maintain 145-150 SPD to act between Sunday and Aglaea.

Huohuo provides healing and energy regeneration, accelerating Ultimate rotations. Run 135-140 SPD to act immediately after Aglaea, providing healing and energy before next cycle.

Turn Order: Sunday (160) → Robin (145-150) → Aglaea (134) → Huohuo (135-140)

F2P Team Alternatives

F2P Team: Aglaea + Remembrance Trailblazer + Asta + Lynx

Remembrance Trailblazer provides summon support and Break damage. Asta contributes SPD buffs and Fire weakness implant. Lynx offers healing with occasional cleanse.

Skill Point Economy: Aglaea's Skill costs 1 SP (use every 2-3 turns). Sunday's Skill costs 1 SP (use on cooldown). This creates -2 SP per cycle, requiring Trailblazer and Lynx to generate surplus through Basic ATKs.

Asta's Ultimate provides up to +50 SPD but isn't guaranteed in cycle 1. Don't rely on this for core breakpoints—use as bonus action frequency.

Turn Order Sequencing and Memory of Chaos

Optimal Sequence: Sunday (160 SPD) → Aglaea (134 SPD) → Support 1 (140 SPD) → Support 2 (135 SPD)

Memory of Chaos 12 Rotation (3-cycle clear):

Cycle 1: Sunday Skill on Aglaea (applying +20% CRIT Rate, 30% DMG boost) → Aglaea Skill summons Garmentmaker → Sunday's 100% Action Advance triggers Garmentmaker's turn with full buff coverage

Cycle 2: Build Supreme Stance stacks. Aglaea uses Basic ATK for energy while Garmentmaker accumulates SPD stacks (+55 per stack). Sunday uses Skill to maintain buffs and advance Garmentmaker. By cycle 3, Garmentmaker reaches 4-5 stacks (220-275 SPD).

Cycle 3: Burst phase. Sunday uses Ultimate for Beatified (+72% CRIT DMG at 200% Sunday CRIT DMG), then Skill to advance Garmentmaker. Aglaea uses Ultimate (350 Energy) to trigger Joint Slash with maximum buff stacking: Sunday's +30% DMG, +20% CRIT Rate, +72% CRIT DMG from Beatified, +30% CRIT DMG from Hero of Triumphant Song, +32% CRIT DMG from BananAmusement Park.

Pull Value Analysis: Should You Invest Before Version 4.0?

Banner runs January 28 to February 12, 2026. With version 4.0 approaching, evaluate investment ROI against upcoming meta shifts.

Aglaea Investment ROI

Aglaea represents the first Remembrance path DPS, introducing summon-based damage mechanics. This unique positioning provides meta longevity—future Remembrance supports will likely synergize with her.

Pros: Functions optimally with Sunday but adequately with Remembrance Trailblazer in F2P teams. Flexible team building.

Cons: Single-target focus limits Pure Fiction effectiveness. Joint Slash deals 200% ATK to primary target with only 90% splash—insufficient for multi-wave clearing.

Average 5-star pull requires 14,400 Stellar Jades (90 hard pity). Investment justified for players lacking premium Lightning DPS or building Remembrance teams. Players with established Jing Yuan or Acheron teams may skip without significant meta disadvantage.

Sunday Investment ROI

Sunday's universal support capabilities provide exceptional long-term value. His 100% Action Advance works on any ally or summon, viable across multiple team compositions. Future summon-based DPS will benefit from his kit, ensuring relevance through version 4.0+.

Beatified buff scaling with CRIT DMG creates unique build optimization. Unlike traditional supports prioritizing SPD and Energy Regen exclusively, Sunday benefits from offensive stat investment. 200%+ CRIT DMG target provides clear progression goals.

Energy requirements (120 Energy Ultimate, +25 battle start, 30 per Skill) create consistent rotation patterns. With Energy Regen% Rope and proper SPD tuning, Sunday achieves 2-3 Ultimates per 5-cycle battle.

Consideration: Overlap with existing Harmony supports. Players with well-built Bronya or Sparkle may find Sunday's advantages marginal in non-summon teams. However, 100% Action Advance on summons provides unique value existing supports cannot replicate.

Version 4.0 Meta Predictions

Version 4.0 historically introduces new paths, mechanics, or significant meta shifts. Allocate Stellar Jade budgets based on current roster gaps.

Priority Recommendations:

• Lacking premium Harmony supports → Prioritize Sunday (universal applicability, future-proofing)
• Lacking Lightning DPS + planning Remembrance teams → Consider Aglaea
• F2P players → Prioritize Sunday over Aglaea (support role ensures longevity regardless of future DPS releases)

F2P Budget: Securing one 5-star requires 14,400 Stellar Jades average, worst-case 28,800 for guaranteed rate-up. Version 3.8 provides approximately 10,000-12,000 Stellar Jades through events, dailies, endgame content—requires pre-saved resources.

Advanced Tips and Troubleshooting

Fine-Tuning Speed When Missing Breakpoints

Players frequently fall 2-5 SPD short due to substat RNG. Solutions:

Temporary Ornaments: Use Fleet of the Ageless (+6% SPD 2-piece bonus), contributing +6-8 SPD depending on base stats—often sufficient to bridge gaps.

Team Buffs: Asta's Ultimate provides up to +50 SPD. While unreliable for core breakpoints, can compensate for temporary shortfalls. Calculate exact SPD requirements accounting for available buffs, then farm relics to meet minimums without buffs.

Sunday Priority: 160 SPD breakpoint is non-negotiable. If substats fall short, temporarily sacrifice CRIT DMG to meet SPD requirements. 160 SPD Sunday with 180% CRIT DMG outperforms 155 SPD Sunday with 200% CRIT DMG due to lost action frequency and buff uptime.

Dealing with Relic Farming RNG

Dual-stat requirements (SPD + CRIT DMG for Sunday, SPD + CRIT Rate for Aglaea) face low probability outcomes.

Efficient Approach:

1. Farm Hero of Triumphant Song and Sacerdos' Relived Ordeal domains exclusively
2. Use Omni-Synthesizers to target specific pieces with desired main stats
3. Prioritize main stat correctness over substat quality initially
4. Once all main stats correct, focus farm on two worst pieces, recycle others for fuel

Substat Upgrade RNG: Each relic has four upgrade opportunities (levels 3, 6, 9, 12) with 25% chance per upgrade to hit desired substats. Farm 20-30 relics per slot for sufficient sample size to obtain 2-3 pieces with acceptable distributions.

Alternative Team Members Without Sunday

Bronya: Provides 100% Action Advance on Skill but lacks summon-specific buffs and CRIT Rate bonus. Run 145-150 SPD (slightly faster than Aglaea) to advance Aglaea's turns while maintaining reasonable action frequency.

Sparkle: Offers CRIT DMG buffs through Ultimate and Skill but lacks Action Advance. Sparkle teams require faster Aglaea (145-150 SPD) to maintain turn frequency, partially defeating Slow Aglaea strategy. However, +72% CRIT DMG buff (at max stacks) compensates for lost turn advancement.

Remembrance Trailblazer: F2P summon support with Break damage contribution. Lacks Sunday's buff potency but accessible. Run 140 SPD to act between Sunday (if present) and Aglaea.

Common Speed Tuning Failures

Sunday Acting After Aglaea in Cycle 1: Occurs when Sunday's SPD too close to Aglaea's (e.g., Sunday 145, Aglaea 134). 11 SPD difference translates to only 6.8 AV difference (68.97 vs 74.63), overcome by minor turn order variations.

Solution: Maintain minimum 20 SPD difference. Recommended 160 vs 134 SPD provides 12.13 AV difference (62.5 vs 74.63), ensuring Sunday always acts first.

Garmentmaker Acting Before Receiving Buffs: Occurs when Garmentmaker's stacked SPD (up to 376.9 at max stacks) causes it to outpace Sunday in later cycles.

Solution: Sunday's 100% Action Advance on Skill bypasses turn order, allowing manual control. Always use Sunday Skill immediately before desired Garmentmaker actions to ensure buff coverage.

Energy Rotation Failures: Sunday cannot charge Ultimate by cycle 2-3 due to insufficient Energy Regen% or missed Skill uses.

Solution: Prioritize Energy Regen% Rope on Sunday and use Skill on cooldown even if buffs still active—energy generation more valuable than avoiding buff overlap.

Frequently Asked Questions

What is the optimal speed for Aglaea in version 3.8?

134 SPD when paired with Hyperspeed Sunday. This breakpoint ensures 2 actions in cycles 1 and 4 over 5 cycles while freeing substats for CRIT Rate, CRIT DMG, and ATK% investment. Faster speeds waste substats without meaningful action frequency gains due to Garmentmaker's independent SPD scaling.

How fast does Sunday need to be for hyperspeed build?

160 SPD minimum, achieving 2 actions in cycles 1, 2, and 4 over 5 cycles. This ensures permanent buff uptime on Aglaea and Garmentmaker while maintaining consistent energy generation for 2-3 Ultimates per battle. Advanced players can push to 165 SPD for marginal improvements in extended battles.

Why run slow Aglaea instead of fast Aglaea?

Slow Aglaea (134 SPD) redirects 15-20 substat rolls from SPD to CRIT DMG and ATK%, increasing damage per action by 8-12%. Garmentmaker gains +330 SPD from stacks regardless of Aglaea's base speed, making additional SPD investment inefficient. Slow configuration also ensures Aglaea acts during Sunday's buff windows.

Should I use speed boots or ATK boots on Aglaea?

Always use SPD Boots. Reaching 134 SPD requires +32 SPD from equipment; SPD Boots provide +25 SPD at max level. Without SPD Boots, you need +32 SPD from substats alone—statistically unlikely and inefficient. ATK Boots provide only 43.2% ATK, less valuable than action frequency and buff synchronization from proper SPD tuning.

Is Sunday worth pulling in version 3.8?

Yes. Sunday provides exceptional long-term value due to universal support capabilities. His 100% Action Advance works on any ally or summon, ensuring relevance across multiple team compositions and future character releases. Beatified buff scaling with CRIT DMG creates unique optimization opportunities, and his kit synergizes with emerging Remembrance meta extending into version 4.0.

What relic sets are best for slow Aglaea?

4-piece Hero of Triumphant Song (+12% ATK, +6% memosprite SPD, +30% CRIT DMG after memosprite attack) + 2-piece The Wondrous BananAmusement Park (+16% CRIT DMG, +32% CRIT DMG on summoned targets). This combination provides 48% total CRIT DMG with near-permanent uptime, directly amplifying Joint Slash damage while supporting Garmentmaker's performance.