Ruan Mei Best Builds – Honkai: Star Rail

Al Bagiuo
Honkai Star Rail Ruan Mei

Ruan Mei, a sweet-tempered and refined scholar, is a member of the Genius Society in Honkai Star Rail. She is known for her impressive expertise in biological science, and her exceptional talent earned her the admiration and respect of her peers.

This beautiful genius is a 5★ character wielding the power of the Ice element and treads the Path of Harmony.

Ruan Mei’s banner, Floral Triptych, is ongoing until January 17, 2024.

HSR Ruan Mei
Photo: miHoYo

The star of the banner appeared in the Trailblaze Continuance, “Crown of the Mundane and Divine” event, alongside the upcoming free 5★ Imaginary element character, Dr. Ratio.

HSR Ruan Mei
Photo: miHoYo

If you’re looking for the Best Build for Ruan Mei in Honkai Star Rail, you’re in the right place. In this article, I will guide you through Ruan Mei’s best relics to use, ornaments, and more. With that said, let’s dive right in!

Ruan Mei’s Best Relic Set

She’s one of the impressive Harmony characters in Honkai Star Rail who can easily buff the team’s DMG and Break Efficiency! When this very sane genius uses her skill, she gains “Overtone” for three turns. Overtone grants DMG increase to all allies by 16% and Weakness Break Efficiency by 50%.

Her Ultimate increases her allies’ All-Type Resistance Penetration by 15%, and when they attack the enemy, it inflicts a Thanatoplum Rebloom.

Thanatoplum Rebloom extends the duration of the enemy’s Weakness Break, delaying their action by an amount equal to 20% of Ruan Mei’s Break Effect plus 10% and dealing Break DMG equal to 30% of Ruan Mei’s Ice Break DMG.

HSR Ruan Mei
Photo: miHoYo

Her talent skill increases SPD by 8% for the team. When allies break an enemy target’s weakness, Ruan Mei deals with this enemy target’s break DMG equal to 60% of her ice break DMG.

With those mentioned, we must first prioritize the Break Effect substats to thoroughly take advantage of her already overpowered kit.

(2) Hackerspace + (2) Thief

HSR Ruan Mei
Photo: miHoYo
Messenger Traversing HackerspaceThief of Shooting MeteorDetail
(2) Increases SPD by 6%(2) Increases Break Effect by 16%A perfect balance for your ultimate support. The combined (2) pieces of Hacker and (2) pieces of Thief provide a Speed bonus while incorporating the Break Effect, enhancing her skillset output.

Full Thief of Shooting Meteor

HSR Ruan Mei
Photo: miHoYo
Thief of Shooting MeteorDetail
(2) Increases Break Effect by 16%.
(4) Increases the wearer’s Break Effect by 16%. When the wearer inflicts Weakness Break on an enemy, it regenerates 3 Energy.
This set is ideal if SPD is not an issue in your team comp. The additional Break Effect on (4) pieces will further boost Ruan Mei’s potential.

Full Messenger Traversing Hackerspace

HSR Ruan Mei
Photo: miHoYo
Messenger Traversing HackerspaceDetail
(2) Increases SPD by 6%
(4) When the wearer uses their Ultimate on an ally, SPD for all allies increases by 12% for 1 turn. This effect cannot be stacked.
If you’re short in SPD, using the (4) pieces Hackerspace is best. This relic set gives an additional SPD, and whenever Ruan Mei uses her Ultimate, the SPD for all allies increases by 12% for a turn.

Best Planar Ornaments

Planar Ornaments are additional relics that boost your character stat and more when worn as a set in Honkai Star Rail. You can obtain Planar Ornaments by participating in the Simulated Universe.

Fleet of the Ageless

HSR Ruan Mei
Photo: miHoYo
Set Effect
(2) Increases the wearer’s Max HP by 12%. When the wearer’s SPD reaches 120 or higher, all allies’ ATK increases by 8%.

Penacony, Land of the Dreams

HSR Ruan Mei
Photo: miHoYo
Set Effect
(2) Increases the wearer’s Energy Regeneration Rate by 5%. Increases DMG for all other allies with the same DMG Type as the wearer by 10%.

Broken Keel

HSR Ruan Mei
Photo: miHoYo
Set Effect
(2) Increases the wearer’s Effect RES by 10%. When the wearer’s Effect RES is at 30% or higher, all allies’ CRIT DMG increases by 10%.

Talia: Kingdom of Banditry

HSR Ruan Mei
Photo: miHoYo
Set Effect
(2) Increases the wearer’s Break Effect by 16%. When the wearer’s SPD reaches 145 or higher, the wearer’s Break effect increases by an extra 20%.

Best Stats

As mentioned, Ruan Mei’s stat priority would be the Break Effect, as it elevates her skillset and overall performance on the battlefield.

Keep in mind that as a support character, Ruan Mei needs enough HP or DEF for survivability in Honkai Star Rail. Otherwise, she will be downed quickly in combat.

HSR Ruan Mei
Photo: miHoYo
Body
HP% / DEF%
Feet
Speed
Planar Sphere
HP% / DEF%
Link Rope
Energy Regren Rate / Break Effect
Substats Priority
Break Effect > SPD > HP% = DEF%

Best Light Cones

Past Self in Mirror (5★)

HSR Ruan Mei
Photo: miHoYo
LC Effect
Increases the wearer’s Break Effect by 60/70/80/90/100%. After the wearer uses their Ultimate, it increases all allies’ DMG by 24/28/32/36/40%, lasting for 3 turns. Should the wearer’s Break Effect exceed or equal 150%, 1 Skill Point will be recovered. At the start of each wave, it immediately regenerates 10/12.5/15/17.5/20 Energy for all allies. Effects of the same type cannot stack.

Memories of the Past (4★)

HSR Ruan Mei
Photo: miHoYo
LC Effect
Increases the wearer’s Break Effect by 28/35/42/49/56%. When the wearer attacks, it additionally regenerates 4/5/6/7/8 Energy. This effect can only be triggered 1 time per turn.

Planetary Rendezvous (4★)

HSR Ruan Mei
Photo: miHoYo
LC Effect
After entering battle, if an ally deals the same DMG Type as the wearer, the DMG dealt increases by 12/15/18/21/24%.

Meshing Cogs (3★)

HSR Ruan Mei
Photo: miHoYo
LC Effect
After the wearer uses attacks or gets hit, additionally regenerates 4/5/6/7/8 Energy. This effect can only be triggered 1 time per turn.

Best Ruan Mei Team

HSR Ruan Mei
Photo: miHoYo
Damage DealerDebufferAmplifierSustain
Jingliu 5★
Blade 5★
Ruan Mei 5★Luocha 5★ or Huohuo 5★
DH Imbibitor Lunae 5★Ruan Mei 5★
Bronya 5★
Luocha 5★
Xueyi 4★Silver Wolf 5★Ruan Mei 5★Fu Xuan 5★ or Lynx 4★
Kafka 5★
Sampo 5★
Ruan Mei 5★Huohuo 5★

Conclusion

With Ruan Mei’s frighteningly impressive skill kit, she landed at S+ Tier for support. There’s no denying that Ruan Mei is the current powerhouse of Harmony and will do so for a long while.

Her Break Effect buff to all allies will shred the enemies with ease! One you may consider a game changer, especially when built well and placed in a team with good synergy.

For more Honkai Star Rail content, check out Honkai Star Rail Update 1.6  and Honkai Star Rail – Silver Wolf Build.