HSR Speed Breakpoints 2.7: Why 134 Speed Fails MoC 12

Understanding Speed Breakpoints in HSR 2.7

Speed breakpoints determine extra actions in Memory of Chaos cycles—the difference between clearing in 9 or 11 cycles.

Action Value (AV) = 10000 ÷ speed. Lower AV = faster turns. Cycle 1 starts at 150 AV, cycles 2-5 at 100 AV each (550 total). Need more relics? Honkai Star Rail oneiric shard top up at BitTopup delivers resources fast.

What Are Speed Breakpoints

Breakpoints are efficiency thresholds where each action = direct damage increase. 120 speed gets 6.60 actions (Sprightly set minimum), but that's obsolete for MoC 12.

At 134 speed (74.07 AV): 7.42 actions, 2 turns only in cycles 1 and 4. At 160 speed (62.5 AV): 8.8 actions, 2 turns in cycles 1, 2, and 4.

That 1.38 action gap decides your clear time.

The Action Value System

Enable Display Action Value in settings. Characters/enemies with lower AV act first. After acting, AV resets based on speed.

Version 2.7 added level 86+ enemies with 1.32x speed multiplier. 120 base speed enemies now run 158 effective speed (63.29 AV). Anyone below 160 speed acts after them—losing first-strike advantage.

How 2.7 Changed Requirements

MoC 12 features Sam and Hoolay with level 86+ scaling. Top team (Lingsha/Fugue/Ruan Mei/Firefly) holds 52.8% usage because it hits new thresholds. Fugue needs 160+ speed, Lingsha 151+.

Sunday (released Dec 3, 2025) has 96 base speed at level 80—needs heavy relic investment. Harmony supports now target 145+ to buff DPS at 134+ properly.

Why 134 Speed Is Dead for MoC 12

134 speed worked through 2.6. Not anymore.

MoC 12 Enemy Speed Tiers

Level 86+ enemies with 120 base speed reach 158 effective (63.29 AV). They outpace 134-speed characters (74.07 AV) by 10.78 AV units. Enemies act first in cycles 2, 3, and 5—disrupting rotations and forcing defensive plays.

Turn order loss = 15-25% damage reduction. Enemies debuff, break shields, or kill squishies before your supports act.

Turn Order Problems at 134 Speed

134 speed gives 2 turns only in cycles 1 and 4. Single turns in cycles 2, 3, 5 while enemies potentially act twice. Burst windows misalign with buff durations.

You can't execute turn-1 ultimates reliably, can't guarantee buffs land before DPS, can't interrupt enemy charges. These issues compound in MoC 12's tight DPS checks.

Testing: 134 vs 160 Speed

160 speed delivers 8.8 actions vs 134's 7.42—that's 1.38 extra actions worth 120k-180k damage. Often the difference between 9-cycle and 10-cycle clears.

160 speed grants 2 turns in cycles 1, 2, 4 with consistent burst windows. You act before level 86+ enemies every cycle. Less variance, more aggressive stat optimization.

New Thresholds: The 160+ Meta

160 speed is the new baseline. Higher breakpoints (164, 172, 178, 182) offer niche advantages.

Speed by Role

DPS: 134-146 with Bronya/Sparkle support. Solo/dual-DPS needs 160+.

Supports: 145-160 to act before DPS while maintaining buffs. Harmony specifically wants 145+.

Sustain: 134-145, prioritizing defensive stats.

Break teams: Fugue 160+, Lingsha 151+, Ruan Mei 145-156.

Math Behind 160 Speed

160 speed (62.5 AV) beats 158 enemy speed (63.29 AV) by 0.79 AV. First action every cycle.

550 total AV ÷ 62.5 = 8.8 actions. Each action = ~11.36% total damage. Losing one action = missing that percentage.

Breakpoint Chart

• 143 speed: 7.62 actions (2 turns cycles 1, 3)
• 146 speed: 7.88 actions (2 turns cycles 1, 3, 5)
• 160 speed: 8.8 actions (2 turns cycles 1, 2, 4)
• 164 speed: 9.04 actions (2 turns cycles 1, 2, 4, 5)
• 172 speed: 9.18 actions (2 turns cycles 1, 2, 3, 5)
• 178 speed: 9.27 actions (2 turns cycles 1, 2, 3, 4)
• 182 speed: 9.34 actions (2 turns all cycles)

Character-Specific Requirements

DPS Characters

Seele: 134-143 in wave clear (Resurgence talent gives extra turns). 160 for boss fights without kills.

Jingliu: 134-146 with Bronya. Solo builds need 160+ for Spectral Transmigration uptime.

DHIL: 134-143 with Sparkle (50% action advance). Independent builds want 151-160 for 3-enhanced basic rotations.

Support Tuning

Bronya: Exactly -1 speed vs DPS target. 134-speed DPS = 133-speed Bronya. Maximizes 100% action advance value.

Sparkle: 145-160, acting before DPS. Her talent buffs quantum allies' speed, making investment doubly valuable.

Ruan Mei: 145-156 in most teams. Ultimate lasts 2 turns, allowing lower speed. 156 gives 2 turns in cycles 1, 3, 4.

Sustain and Debuffers

Lingsha: 151+ in break teams for healing frequency + break damage. 7.98 actions at 151.

Luocha/Huohuo: 134-145, prioritizing defense and energy. Healing doesn't need precise timing.

Pela/Silver Wolf: 145-160 to apply debuffs before DPS. 160 guarantees debuff application before enemies.

Reaching Breakpoints: Relic Guide

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Speed Substats Strategy

Speed boots: +25 speed main stat. Non-negotiable for 160+ targets. Largest single increase available.

Substat rolls: 2.0-2.9 per enhancement. Perfect relic = ~13-14.5 speed across 5 rolls.

Math: 100 base speed character needs 60 more. 25 from boots + 35 from substats (7 per relic average) + set bonuses.

Priority: Get speed on body (CRIT main), sphere (DMG%), rope (ATK%/ERR). Gloves can sacrifice speed since boots cover bulk.

Speed Boots vs ATK% Boots

ATK% boots = +43.2% ATK = ~15-18% damage.

Speed boots enabling 7.42→8.8 actions = 18.6% damage via action economy.

Use speed boots when: They enable a breakpoint. Use ATK% boots when: You're between breakpoints or get speed from team buffs.

Characters with Bronya/Sparkle may hit breakpoints with ATK% boots + substats. Solo characters need speed boots.

Messenger Set Analysis

4pc Messenger: +6% speed self, +12% speed to ally on ultimate.

6% = ~6-7 speed on 100-110 base characters. Reduces substat needs from 35 to 28-29.

Best on supports with frequent ults (Ruan Mei, Asta, Tingyun). 12% ally buff lasts 1 turn—helps turn order but doesn't affect breakpoint math.

Value drops if you already hit thresholds through other means.

Advanced Mechanics

Speed Buff Stacking

Buffs stack additively before applying to base. Ruan Mei 8% + Asta 50 flat = 100 base × 1.08 + 50 = 158 total.

Buffs applied mid-cycle don't change existing AV, only future turns. Most valuable at cycle start.

Permanent speed (relics/cones) calculates before % buffs. 125 total × 1.08 = 135, not 108 base × 1.08 + 25.

Action Advance vs Speed

Action advance (Bronya 100%, Sparkle 50%) immediately reduces current AV by that %. 50 AV with 50% advance = 25 AV.

Doesn't change speed stat or affect next turn timing. After advanced action, AV resets normally.

Combining advance + speed buffs = immediate action + better future timing. Why Bronya/Sparkle dominate hypercarry.

Turn Order Manipulation

Optimal sequence: Support buffs → DPS → Sustain/debuff.

Requires: Supports 145-160, DPS 134-146 (or 160+ solo), Sustain 134-145.

Advanced: Tune in 1-2 speed increments. DPS 135 acts after support 136, ensuring buffs land first.

Dual-DPS: Stagger speeds (primary 134, secondary 140) with support 145. Both get buffs, efficient economy.

Speed vs Damage Balance

When to Sacrifice CRIT

Sacrifice CRIT when speed enables a breakpoint. 7.42→8.8 actions (18.6% increase) beats 2-3 CRIT rolls.

Keep CRIT when already at target speed. 160→165 doesn't grant extra actions.

Formula: Gaining 1 action > ~10-15% CRIT rate or 20-30% CRIT DMG.

Diminishing Returns

160→182 speed = 8.8→9.34 actions (0.54 gain, 6.1% improvement) for 22 speed points.

Those 22 points = ~11 substat rolls = 44% CRIT DMG or 22% CRIT rate. Often better damage than marginal actions.

Exception: Speed-scaling kits (Sunday) or speed synergies.

Team Composition Impact

Hypercarry (Bronya/Sparkle): DPS 134-143, supports 160+. Action advance compensates, max CRIT investment.

Dual-DPS: Both need 134 minimum, prefer 145-160. More speed across team, accept lower CRIT.

Break teams: Speed on break appliers (Fugue 160+, Lingsha 151+). Break doesn't scale with CRIT, making speed more valuable.

Common Mistakes

Over-Investing Support Speed

Supports past 160-164 gain nothing while losing offensive/defensive stats. Ruan Mei at 180 vs 156 = same buff uptime, worse substats.

Exception: Speed-scaling kits. Asta's talent uses charge stacks, not her speed.

Target minimum for turn order. Support before 134 DPS? 135-136 works. 145 adds safety margin. 170+ wastes budget.

Ignoring Enemy AV

MoC 12 enemies at 158 speed (63.29 AV) beat anyone below 160. Optimizing in isolation = acting second constantly.

Different rotations = different enemy speeds. Monitor and adjust per rotation.

Enemies with charges/buffs benefit from turn manipulation. Acting first allows interrupts.

Misunderstanding Buff Duration

Speed buffs last 1-2 turns (actions), not cycles. Ruan Mei ult = 2 turns = next 2 actions only.

Turn-based countdown = after each buffed action. 2-turn buff on 160-speed character with double turn = expires same cycle.

Action advance doesn't extend buffs. Buff + Bronya advance = still expires after 2 actions.

Step-by-Step Tuning

Hypercarry Teams

1. Identify DPS + primary support (Seele-Bronya, Jingliu-Bronya, DHIL-Sparkle)
2. Set DPS to 134-143 for max CRIT/ATK
3. Tune support: Bronya at -1 speed vs DPS, or Sparkle at 145-160
4. Secondary support (Ruan Mei, Tingyun) at 145-156
5. Sustain at 134-145
6. Test MoC 12: Primary support → Secondary → DPS → Sustain. Adjust ±1-2 if wrong

Dual-DPS Teams

1. Designate primary/secondary DPS
2. Primary 134-146, secondary 140-151 (staggered)
3. Support 145-160 (buffs both)
4. Sustain 134-145 (acts after DPS)
5. Test buff coverage on both DPS. Increase support speed or decrease secondary DPS if needed
6. Target 16-18 total DPS actions (8-9 each) across 5 cycles

DOT Teams

1. DOT applicators (Kafka, Black Swan) at 145-160 for trigger frequency
2. DOT supports (Ruan Mei, Asta) at 145-156
3. Sustain 134-145
4. DOT scales with frequency, not CRIT. Accept lower CRIT for speed + effect hit rate
5. Test DOT trigger timing. Kafka talent procs on ally debuffs—turn order critical
6. Balance speed vs effect hit rate based on enemy resistance

FAQ

Minimum speed for MoC 12 in 2.7?

160 to outpace 158 enemy speed (63.29 AV). Grants 8.8 actions with 2 turns in cycles 1, 2, 4. Below 160 = acting after enemies. DPS with Bronya/Sparkle can run 134-146 due to action advance.

Is speed worth sacrificing CRIT?

134→160 speed = 18.6% more actions, typically beats 10-15% CRIT rate or 20-30% CRIT DMG. Calculate: (new actions - old) / old = action increase %. If this beats CRIT increase from same substats, prioritize speed. Once at breakpoint, stack CRIT.

Should Bronya be faster or slower than DPS?

Exactly -1 speed vs DPS. 134 DPS = 133 Bronya. Ensures Bronya acts right before DPS, applies 100% advance, DPS acts next with buffs. Wrong tuning = bad turn order. Use Display Action Value to verify.

What speed does Ruan Mei need in break teams?

145-156. Acts before break dealers, applies ult's break boost. 156 gives 2 turns in cycles 1, 3, 4 (matches ult timing). With Fugue (160+) and Lingsha (151+), Ruan Mei at 145-151 acts third. Prioritize break effect + energy after hitting speed.

Do set bonuses count toward breakpoints?

Yes. Messenger 6% applies to total speed. 100 base + 25 boots + 25 substats × 1.06 = 159 (just under 160). 4pc also gives 12% to ally on ult (temporary). Calculate sets in total speed, but remember % applies after flat additions.

How much speed for supports to act before 134 DPS?

135-136 minimum. 145 for safety margin. Leaves budget for effect hit rate, break effect, energy. Bronya/Sparkle need precise tuning vs DPS, not absolute thresholds.

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