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Ruan Mei build

Ruan Mei

A fast Ruan Mei Break support build that maintains Overtone and aligns RES penetration with the team's Super Break window.

IceHarmony
Role
Break Efficiency, damage and RES-penetration support
Version
4.4
Reviewed on
August 12, 2026
Compare build options

Recommended build

Light Cone

Past Self in Mirror
Best choice

Break Effect, team damage, Energy and Skill Point recovery condense Ruan Mei's support priorities into one cone.

When to use it : Reach 150% Break Effect so each Ultimate grants a Skill Point; time the Ultimate before the team's burst to activate the damage bonus.

Relics

4× Watchmaker, Master of Dream Machinations
Best choice

Break Effect improves Ruan Mei's Thanatoplum Rebloom damage and the Ultimate trigger grants the same offensive stat to the whole team.

When to use it : Use the Ultimate immediately before allied Break or Super Break attacks so Watchmaker's two-turn Break Effect buff covers them.

Planar Ornaments

2× Sprightly Vonwacq
Best choice

Energy Regeneration and the opening advance improve both Ultimate cadence and first-wave buff setup.

When to use it : Reach 120 SPD so Sprightly Vonwacq advances Ruan Mei at combat start and lets her establish Overtone first.

Team lineup

Best choice

Firefly and Fugue exploit Ruan Mei's Break Efficiency and RES penetration, while Lingsha sustains and contributes frequent Break damage.

When to use it : Maintain Overtone and use Petals to Stream, Repose in Dream before Firefly and Fugue convert Toughness damage into Break and Super Break.

Compare the options — Ruan Mei

Choose based on your equipment and the stated conditions. These tables bring together the guide’s qualitative recommendations, without measured damage comparisons.

Guide version
4.4
Recommendations reviewed
Assumed role
Break Efficiency, damage and RES-penetration support

The guide’s stat targets and rotation provide the context. Eidolons, superimpositions, substats and enemies may change the choice; options are not evaluated at equal investment.

On small screens, scroll the table horizontally to compare columns.

Which Light Cone should you choose?
OptionWhy choose it?Conditions and availability
Guide’s reference choiceBreak Effect, team damage, Energy and Skill Point recovery condense Ruan Mei's support priorities into one cone.

Reach 150% Break Effect so each Ultimate grants a Skill Point; time the Ultimate before the team's burst to activate the damage bonus.

Accessible optionRepeated basic attacks generate extra Energy, supporting reliable Ultimate uptime at minimal account cost.

No additional condition documented in this guide.

This three-star cone is available from ordinary Warp pulls and reaches Superimposition 5 cheaply.

Accessible optionBreak Effect and Energy after attacks support Ruan Mei's Break-focused buffs without relying on a three-star fallback.

No additional condition documented in this guide.

This four-star Warp cone is not tied to the Battle Pass.

Which relics should you choose?
OptionWhy choose it?Conditions and availability
Guide’s reference choiceBreak Effect improves Ruan Mei's Thanatoplum Rebloom damage and the Ultimate trigger grants the same offensive stat to the whole team.

Use the Ultimate immediately before allied Break or Super Break attacks so Watchmaker's two-turn Break Effect buff covers them.

AlternativeMessenger is a source-listed SPD support alternative.

No additional condition documented in this guide.

Which Planar Ornaments should you choose?
OptionWhy choose it?Conditions and availability
Guide’s reference choiceEnergy Regeneration and the opening advance improve both Ultimate cadence and first-wave buff setup.

Reach 120 SPD so Sprightly Vonwacq advances Ruan Mei at combat start and lets her establish Overtone first.

AlternativeTalia is a source-listed Break Effect alternative.

No additional condition documented in this guide.

Only one option documented: no A/B comparison available.

Which team should you choose?
OptionWhy choose it?Conditions and availability
Guide’s reference choiceFirefly and Fugue exploit Ruan Mei's Break Efficiency and RES penetration, while Lingsha sustains and contributes frequent Break damage.

Maintain Overtone and use Petals to Stream, Repose in Dream before Firefly and Fugue convert Toughness damage into Break and Super Break.

Trace priority

  1. Ultimate
  2. Skill
  3. Talent

Ruan Mei maintains Overtone for team damage and Weakness Break Efficiency, then uses her Ultimate to add All-Type RES penetration and delay broken enemies.

How to play it

  1. 1Use String Sings Slow Swirls before the damage dealer acts, then refresh Overtone on its final turn.
  2. 2Basic attack between refreshes to generate Skill Points and Energy.
  3. 3Cast Petals to Stream, Repose in Dream immediately before the team's Break burst so RES penetration and Watchmaker cover it.

Sources and methodology

Editorial recommendations are written from released game data, then cross-checked against specialist calculations. They are not copied from a single tier list.

Review method

Prydwen and Icy Veins agree on Energy, speed and a 180% in-combat Break Effect endpoint. The older baseline was checked against the immutable released 4.0–4.4 delta and exact local effects: 160% sheet plus Inert Respiration's 20% reaches the A6 cap, while Watchmaker is timed to Super Break.

Game data snapshot
4.4
Snapshot commit
648b08fb
Baseline version
3.4
Published on
Editorial review by
HoyoWhatpeon

Independent fan recommendations based on released data. The 180% in-combat Break Effect target includes Inert Respiration's 20%; do not overbuild the sheet to 180% unless the team needs it.

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