Ruan Mei in Honkai Star Rail: Kit, Best Build, Light Cones, and Team Compositions


In the upcoming Honkai Star Rail 1.6 update, Ruan Mei is slated for release as the first 5* limited Harmony character. As is customary with Harmony characters, the community anticipates Ruan Mei to serve as a potent buffer, and early indications suggest she’ll meet these expectations. When optimized, she’s projected to function as a fusion of Asta and Tingyun. Here’s a comprehensive guide to building Ruan Mei, covering her optimal light cones, relics, and recommended team compositions.

Understanding Ruan Mei in Honkai Star Rail

Ruan Mei embodies grace and a gentle temperament, known for her expertise in biological sciences as the esteemed #81 member of the Genius Society. Her collaboration with Herta, Screwllum, and Stephen in crafting the Simulated Universe showcases her remarkable intellect. Beyond her scholarly pursuits, Ruan Mei finds joy in savoring desserts, appreciating traditional theater, and indulging in the art of embroidery.

Ruan Mei Release Date

Ruan Mei is slated for release during the initial phase of the Honkai Star Rail 1.6 update, with an estimated arrival date of December 27th, 2023. Alongside her debut, the Honkai Star Rail 1.6 banners will showcase Xueyi on March 7th and Tingyun as 4-star characters, adding further excitement to the release.

Ruan Mei’s: Cycle Rotation And Kit (At Max Level)

Ruan Mei appears to embody a blend of Asta and Tingyun, infused with remarkable weakness break capabilities. To optimize her playstyle and build, let’s delve into her kit and explore the ideal setup for Ruan Mei’s capabilities.

  • Threading Fragrance (Basic Attack): Deals Ice Damage equal to 130% of Ruan Mei’s Attack to a single target.
  • String Sings Slow Swirls (Skill): Grants Overtone upon use, boosting ally damage by 40% and increasing Weakness Break Efficiency by 50% for 3 turns.
  • Petals to Stream, Repose in Dream (Ultimate): Sets a 2-turn field enhancing Resistance penetration for allies by 24%. When enemies’ weaknesses are broken during this field, their actions are delayed by 15% of Ruan Mei’s break effect plus 10%. They also receive 180% of Ruan Mei’s ice break damage.

  • Somatotypical Helix (Talent): Grants a 37.5% damage increase to allies and deals additional damage to weakness-broken enemies.
  • Silken Serenade (Technique): Activates Silken Serenade state, enabling Ruan Mei’s Skill to trigger automatically for 1 turn without using Skill points. In the Simulated Universe, attacking enemies’ weaknesses initiates combat. After breaking an enemy’s weakness, deals additional Break Damage equal to 100% of Ruan Mei’s Ice break damage.

Ruan Mei’s arsenal is brimming with potent buffs. Her Skill offers a substantial boost in Damage and Weakness Break Efficiency. The Ultimate enhances All Type Resistance penetration for allies and delays attacks from enemies whose weaknesses have been exploited. Additionally, her Talent bestows a Damage % increase to all allies and allows for targeting enemy weaknesses at the start of battle, regardless of the damage type dealt by allies.

The most effective rotation for Ruan Mei would be:

Skill -> Normal Attack -> Normal Attack -> Skill -> Normal Attack -> Normal Attack

Leverage Ruan Mei’s Ultimate during a high-damage cycle or when the enemy is on the brink of a weakness break, making the most of its two-turn duration.

Best Ruan Mei Build: Planar Ornaments, Relics, & Sub Stats

Ruan Mei Cavern Relics

To enhance Ruan Mei’s support capabilities, optimizing her with the ideal Relics, Planar Ornaments, and primary stats is crucial. Here’s a breakdown of the recommended Relics, Planar Ornaments, as well as the Sub and Main stats for her build.

  • 4-piece Thief of Shooting Meteor set (Best for Ruan Mei)
  • 4-piece Messenger Traversing Hackerspace (Extra speed buff for the team)

Ruan Mei’s buffs rely on her allies’ stats, minimizing the impact of her own stats on most buffs. Given her focus on weakness breaks, the Thief of Shooting Meteor artifact set proves ideal. This set enhances her break effect, amplifies Ultimate damage, and boosts energy regeneration with each break. Additionally, consider employing the 4-piece Messenger Traversing Hackerspace for an added 12% speed buff benefiting all allies.

Ruan Mei Planar Ornaments

  • 2-piece Talia, Kingdom of Banditry (Best for Ruan Mei)
  • 2-piece Pan-Cosmic Commercial Enterprise (Buffs attack and also will make it easier to debuff enemies)

To optimize Ruan Mei’s Planar Ornaments, consider the 2-piece Talia: Kingdom of Banditry, amplifying her break effect and directly impacting her Ultimate’s additional damage during weakness breaks. Additionally, employing a 2-piece Pan-Cosmic Commercial Enterprise setup can aid in applying debuffs effectively on enemies with substantial effect resistance.

Best Ruan Mei Main and Sub Stats

Maximize Break effect stats for Relics, ensuring sufficient Speed to meet the 145-speed threshold from the 2-piece Talia: Kingdom of Banditry set. Prioritize stacking Crit Rate and Crit Damage to amplify break effect damage further.

Light Cones for Best Ruan Mei Build

Let’s delve deeper into the assortment of beneficial Light Cones that complement Ruan Mei’s abilities effectively:

  • Past Self in Mirror (Signature Light Cone): Commences each wave by regenerating Energies and amplifies damage by 15% for all allies after using the skill. It also augments All-Type Resistance Penetration by 6% for all allies, coupled with enduring speed boosts lasting 3 turns.
  • Memories of the Past (Best 4-star option): Offers a substantial flat 28% increase to Break Effect. Additionally, it replenishes 4 energy upon the wearer’s attacks, contributing to sustained energy regeneration.
  • Chorus (Accessible and Superimpose): Grants a solid flat 12% boost to attack for all allies, serving as an easily attainable yet impactful option.

Ruan Mei Ascension and Trace Materials

All Ascension Materials for Ruan Mei:

All Trace Materials for Ruan Mei:

Ruan Mei Eidolons in Honkai Star Rail

  • Neural Replication Embroidery (E1): Extends Overtone’s duration by 1 turn and elevates the attack of all allies by 40%.
  • Reedtide Stroll (E2): Boosts Ruan Mei’s break effect by 100% for 2 turns whenever an enemy’s weakness is exploited.
  • Smoke Rises, Viridescence Sways (E3): Elevates Ultimate Level by +2, reaching Level 15, and increases Talent Level by +2, reaching Level 15.
  • Divinity in Reflected Bronze (E4): Amplifies allies’ Crit Damage by 40% when attacking weakness-broken enemies, contingent upon Ruan Mei’s presence on the field.
  • Hairpin of the Languid Crafter (E5): Advances Skill Level by +2, reaching Level 15, and Basic Attack Level by +1, reaching Level 10.
  • Gauze Amidst a Fall (E6): Prolongs Ruan Mei’s Ultimate field by 1 turn. Additionally, augments her Ultimate’s additional damage multiplier by 24% when her Break Effect surpasses 180%, scaling up by 24% for every 10% above this threshold, maxing out at a 240% damage multiplier.

Her Eidolons indeed bring substantial power, making aiming for her E6 quite rewarding. Even if aiming for her full potential at C6 isn’t the goal, pursuing at least her E1 is highly recommended. It extends Overtone’s duration by an extra turn and bolsters the attack of all allies by an impressive 40%, significantly enhancing team effectiveness.

Ruan Mei Traces in Honkai Star Rail

Bonus Abilities:

  • Inert Respiration (Ascension 2): Augments Break Effect by 20% for all allies.
  • Days Wane, Thoughts Wax (Ascension 4): Grants Ruan Mei the ability to regenerate 5 Energy at the commencement of her turn.
  • Candle Lights on Still Waters (Ascension 6): For each 10% increment of Ruan Mei’s Break Effect beyond 120%, her Skill additionally bolsters allies’ damage by 6%, reaching a maximum of 36%.

Stat Boosts:

  • Break Effect Boost: 37.3%
  • Defense Boost: 12.5%
  • Speed Boost: 5

Best Team Comps For Ruan Mei

Seelie and Jing Yuan both benefit significantly from Ruan Mei’s speed and damage buffs. However, Ruan Mei synergizes effectively with any Hypercarry DPS.

Teaming up Ruan Mei with Pela enhances defense shred capabilities, while pairing her with Asta amplifies allies’ speed and attack. Silver Wolf contributes by intensifying defense shred and applying Ice weakness for Ruan Mei to exploit.

Huohuo stands as an excellent pairing with Ruan Mei due to her energy regeneration ability, enabling Ruan Mei to maintain her Ultimate active for extended durations.

Is Summoning Ruan Mei Worth It in Honkai Star Rail?

Absolutely, Ruan Mei brings a powerhouse of buffs that significantly elevate a team’s performance. Her kit is packed with quality enhancements that can augment the effectiveness of any lineup. Investing in her, especially aiming for her E1, proves highly beneficial. As for my opinion, Ruan Mei’s kit is undeniably impressive! Her ability to amplify team damage, exploit weaknesses, and support various compositions makes her a formidable addition to any roster.


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