Tingyun Build Guide for Aglaea: ERR & Speed Breakp

Understanding 2-Ult Rotation Strategy

The 2-Ultimate rotation maximizes Aglaea's damage by casting her 350-energy Ultimate twice within critical windows. This directly impacts Memory of Chaos and Pure Fiction clear times.

Aglaea's kit provides 30 energy from Technique and starts with 50% Ultimate gauge. Combined with ERR% Rope, she reaches first Ultimate in 2-3 turns. The challenge: cycling to second Ultimate fast enough.

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Why 2-Ult Rotations Matter

Properly executed 2-Ultimate rotations within first four cycles allow you to:

Capitalize on enemy vulnerability windows
Maximize buff uptimes from Tingyun's Benediction
Maintain consistent energy generation
Reduce clear time by 15-25% vs slower rotations

Hitting Ultimates in cycles 1 and 4 versus 1, 4, and 7 adds 40,000-60,000 damage—often the difference between 3-star and 2-star clears.

Tingyun's Role

Tingyun provides 50 energy through her 130-energy Ultimate (14.3% of Aglaea's cost). Her Skill grants 50% ATK + 25% of Tingyun's ATK for 3 turns.

Optimal F2P team: Aglaea + Remembrance Trailblazer + Tingyun + Gallagher. Tingyun's Technique adds 50 energy at battle start.

Energy and Action Value Mechanics

Energy generation follows deterministic formulas. Aglaea generates energy through:

Basic Attacks and Skills
Taking damage
ERR% stat bonuses
External sources (Tingyun's Ultimate)

Action Value = 10000 ÷ SPD. 134 SPD = 74.63 action value; 160 SPD = 62.5. Lower values = more frequent turns.

ERR% Breakpoints (No 5★ Cones)

ERR% multiplies all energy gained from combat, making it critical for Ultimate uptime.

Base Mechanics

Tingyun's base SPD: 112. Ultimate cost: 130 energy. Target ERR%: 19.44% minimum (one ERR% Rope at +15).

Optimal performance: 24-28% total ERR% through 1-2 sub-stat rolls (3.89% each).

Exact Targets for 4★ Cone Users

Minimum: 19.44% (ERR% Rope only)

Honkai Star Rail Tingyun's Link Rope interface with 19.44% Energy Recharge Rate

Optimal: 24-28% (Rope + 1-2 sub-stat rolls)

This buffer accounts for:

Enemy attack pattern variance
Skill Point economy forcing Basic Attacks
Team composition variables

Light Cones like Dance! Dance! Dance! require strict 19.44% minimum. Meshing Cogs reduces requirements by 3-5% through passive energy regen.

Team Composition Impact

Standard team (Aglaea/RMC/Tingyun/Gallagher) makes 19.44% reliable. Alternative sustain options may require 22-24% for safety margins.

Testing Protocol

Enter combat with Tingyun's Technique (50 energy start)
Track actions until first Ultimate
Record if she reaches 130 energy in 3, 4, or 5 actions
Repeat 3x for variance

4 actions or fewer = breakpoint met. 5+ actions = need more ERR%.

SPD Breakpoints and Action Order

Speed tuning determines when Tingyun's energy arrives relative to Aglaea's readiness.

Optimal SPD Ranges

134 SPD (minimum): Action value 74.63. Ensures 2 turns in cycles 1 and 4.

Guide chart for Tingyun's SPD breakpoints and action values in Honkai Star Rail

143 SPD: Action value 69.93. Relevant against 140-150 SPD enemies.

160+ SPD (premium): Action value 62.5. Enables 2 turns in cycles 1, 2, and 4. Requires:

SPD Boots (+25)
4pc Messenger (6% SPD from 2pc, 12% team SPD from 4pc)
3-5 SPD sub-stat rolls (2-2.5 each)

Speed Tuning Principles

Matching Aglaea's SPD (both 134): Turn order by team position. Less predictable energy timing.

Exceeding Aglaea (Tingyun 143-160, Aglaea 134): Guarantees Tingyun acts first. Risk of wasting Benediction turns.

Below Aglaea (Tingyun 134, Aglaea 160): Aglaea acts first, generates 280-300 energy, then receives Tingyun's 50-energy injection. Often optimal.

Action Value Timeline

At 134 SPD (both characters):

Cycle 1: Tick 74.63
Cycle 2: Tick 149.26
Cycle 3: Tick 223.89
Cycle 4: Tick 298.52

Enemies at 130 SPD (76.92 action value) create windows for double actions.

Enemy SPD Adjustments

Slow enemies (100-120 SPD): 134 SPD sufficient Fast enemies (150-180 SPD): 160+ SPD increasingly valuable

Best 4★ Light Cones

Dance! Dance! Dance!

Advances Tingyun's action by 16% after Ultimate. Translates to 11-12 action value units at 134 SPD, equivalent to 1.5-2 SPD per cast. Accumulates to 1-2 additional actions per encounter.

Doesn't reduce ERR% requirements but improves rotation flexibility.

Meshing Cogs

Provides 8 energy when Tingyun attacks or gets hit (1-turn cooldown). Generates 16-24 energy per rotation, reducing ERR% requirements by 3-5%.

Shines in multi-target encounters with frequent splash damage.

A Grounded Ascent

Grants CRIT Rate to allies after Skill/Basic Attack. Indirect damage boost but no energy support.

Comparative Analysis

Comparison of best 4★ Light Cones for Tingyun in Honkai Star Rail

Meshing Cogs: Most direct ERR% reduction (16-17% vs 19.44%) Dance! Dance! Dance!: Highest rotation optimization A Grounded Ascent: Damage focus over stat efficiency

Relic Sub-stat Priority

Primary Targets

Priority: SPD > ATK% > HP% > DEF > Effect RES% to 30%

SPD: Mandatory for breakpoints. Need 3-5 rolls (2-2.5 each).

ATK%: Benediction scales with Tingyun's ATK. Target 2400-2600+ total. Each 10% ATK% = 150-180 ATK for Tingyun = 37-45 bonus ATK for Aglaea.

HP%: Survivability. Target 3000-3500+ HP.

Effect RES% to 30%: Debuff protection breakpoint.

Rolling Strategy

Keep and enhance to +12:

SPD + one of: ERR%, ATK%, HP%
Double desirable sub-stats
Correct main stats (SPD Feet, ERR% Rope)

Enhance to +6 for evaluation:

Two desirable sub-stats, no SPD
Three initial sub-stats (SPD may appear at +3)
Correct main stat + one desirable sub-stat

Immediate fodder:

Incorrect main stats
Four sub-stats, none desirable
Multiple flat stats

Minimum Quality

Functional build requires:

3-4 SPD sub-stat rolls (+6 to +10 total SPD)
1-2 ERR% rolls (if no energy bonus cone)
2-3 ATK% rolls (2400+ ATK)
1-2 HP% rolls

Average 2 desirable sub-stats per piece, at least one being SPD. Requires 2-3 weeks farming.

Relic Sets and Main Stats

Sacerdos' Relived Ordeal

2pc: 6% SPD (6.7 SPD at base 112) 4pc: 18% CRIT DMG (36% double stack)

Benefits Tingyun's personal damage. 6% SPD aids 134 breakpoint.

Messenger Traversing Hackerspace

2pc: 6% SPD 4pc: 12% team SPD for 1 turn after Ultimate

Highest SPD scaling. Optimal for 160+ breakpoint. Team SPD bonus creates brief acceleration windows.

Planar Ornaments

Broken Keel: Requires 30% Effect RES%. Grants 10% CRIT DMG to all allies.

Sprightly Vonwacq: 5% ERR% + 40% action advance at battle start (requires 120+ SPD). Reduces sub-stat requirements and boosts rotation starts.

Main Stats

Feet: SPD (mandatory) - 25 SPD at +15 Rope: ERR% (mandatory) - 19.44% at +15 Body: HP% or ATK% (survivability vs damage) Sphere: HP% or ATK%

Step-by-Step Build Guide

Phase 1: Baseline

Equip SPD Feet + ERR% Rope:

137 SPD (112 base + 25) - exceeds 134 breakpoint
19.44% ERR% - meets minimum

This baseline functions for 2-Ult rotations.

Phase 2: Farming Priority

Week 1-2: Messenger domain for 4pc + correct main stats Week 3: Planar domains for Sprightly Vonwacq/Broken Keel Week 4+: Sub-stat optimization

Phase 3: Fine-Tuning

Enhance all to +6 to reveal sub-stats
Enhance SPD pieces to +12 immediately
Keep pieces with 2+ desirable stats
Replace zero-desirable pieces

Target 3 SPD rolls for 143 SPD, 5 rolls for 160 SPD.

Phase 4: Testing

Enter Simulated Universe World 6+
Track Tingyun's Ultimate availability
Verify Aglaea's second Ultimate within 4 cycles
Adjust ERR% (+3-5%) or SPD (+1-2 rolls) as needed

Common Mistakes

Stacking ERR% Without SPD

35% ERR% with 120 SPD fails because timing matters. Maintain 19.44-24% ERR% while prioritizing 134+ SPD.

Ignoring Skill Point Economy

Tingyun's Skill costs 1 SP, Basic generates 1 SP. Optimal pattern: Skill → Basic → Skill → Basic. Maintains SP neutrality and Benediction uptime (3-turn duration).

Enemy Action Value

Fast enemies (150+ SPD) disrupt rotations. Increase Tingyun to 143/160 SPD against them. 134 SPD sufficient for 100-120 SPD enemies.

Diagnosing Failures

Energy shortfall (320-340 vs 350):

Verify ERR% Rope at +15
Check Tingyun Ultimate timing (when Aglaea has 280-300 energy)
Confirm Aglaea uses ERR% Rope

Timing mismatch:

Increase Tingyun SPD
Check SP economy
Monitor enemy disruption

SP starvation:

Alternate Tingyun Skill/Basic
Verify RMC SP generation
Reduce Gallagher Skill frequency

Advanced Optimization

Trace Priority

Ultimate (max first): Energy reliability
Skill (max second): Benediction ATK% and duration
Talent (max third): Energy generation
Basic (max last): Minimal impact

Eidolons

E1: +20% SPD for 1 turn after Skill (22-24 SPD boost) E4: Benediction regenerates 5 energy/turn (15 total over 3 turns) E6: Ultimate gives 60 energy vs 50 (17.1% vs 14.3% of Aglaea's cost)

Team Synergy

Huohuo replaces Gallagher: Reduces ERR% requirements by 3-5% but requires 5★.

Asta replaces RMC: SPD buffs aid breakpoints but conflicts with SP economy.

Cost-Benefit (F2P)

2-3 weeks Trailblaze Power investment delivers:

Functional 2-Ult rotations
Consistent 36-star Memory of Chaos
Reusable build for future characters

Alternative: 8,000-16,000 Stellar Jade per 5★ support. Tingyun optimization = zero Jade cost.

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Real Combat Application

Multi-Wave Encounters

Wave 1: Technique (50 energy) → standard rotation → Aglaea's first Ultimate Wave 1 end: Preserve Tingyun Ultimate if possible Wave 2 start: Cast preserved Ultimate → 50 energy for Aglaea Wave 2: Standard rotation → second Ultimate

Boss Mechanics

Frequent invulnerability (Cocolia): 160+ SPD for max actions during vulnerable windows.

Consistent vulnerability (Gepard): 134 SPD sufficient.

Current Endgame Examples

Memory of Chaos Floor 12 (Jan 2026): Enemies 130-140 SPD. Tingyun 134 SPD + 19.44% ERR% enables Aglaea Ultimates at actions 3 and 7. Clear in 8-9 cycles.

Pure Fiction: Messenger 4pc team SPD bonus maximizes damage during buff windows.