Honkai Star Rail Bailu build

In Honkai Star Rail, Bailu is an adorable doctor here to help her teammates on the Xianzhou Luofo. Find out all about her build, her light cone, and her relics.

A screenshot of Honkai Star Rail's Bailu speaking to March 7th (off-screen) with a serious expression on her face.

Honkai Star Rail’s Bailu is the adorable doctor from the Xianzhou Alliance, with powerful healing abilities and the tail of a fish… Or is it a dragon? She is well known for her out-there approach to prescriptions and diagnosis so to help you get familiar with her, we’re here to explore everything we know about Bailu’s story, build, relics, and more.

There are loads of new faces for you to meet on your Trailblazing journey, so make sure to check out our Honkai Star Rail banner guide, Honkai Star Rail tier list, and Honkai Star Rail codes. Alternatively, we’ve got more guides like this for Honkai Star Rail’s Tingyun, Honkai Star Rail’s Sushang, and Honkai Star Rail’s March 7th.

Now, here are all the important details you need on Honkai Star Rail’s Bailu.

What’s the best Honkai Star Rail Bailu build?

Bailu is a five-star support unit with the power of lightning. She fills the role of main healer perfectly thanks to the high outgoing healing capacity from her skill, ultimate, and passive talent.

Although her healing output is high, it can be a little unreliable due to her skill’s random targeting. Additionally, she’s the only support unit in Honkai Star Rail so far without the ability to remove debuffs. For more consistent healing and debuff control we recommend running Bailu alongside Honkai Star Rail’s Luocha.

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What are the best light cones for Honkai Star Rail’s Bailu?

Time Waits for No One is a five-star light cone that is specifically built for Bailu’s kit, increasing her HP and outgoing healing abilities and buffing her attacks. As this five-star light cone is obtained through gacha, you could use any other Abundance path light cone that you have access to.

Light cone Effect How to obtain
Time Waits for No One Increases Bailu’s max HP by 12% and outgoing healing by 12%. When she heals allies, it records the amount of outgoing healing. When any ally launches an attack, a random attacked enemy takes additional damage equal to 50% of the recorded outgoing healing value. This additional damage is of the same type as Bailu’s, is not affected by other buffs, and can only occur once per turn Gacha, Starlight Exchange shop
Warm Nights Won’t Last Increases Bailu’s max HP by 20%. When she uses her basic attack or skill, Bailu restores all allies HP by 2% of their respictive max HP Gacha
Cornucopia When Bailu uses her skill or ultimate, her outgoing healing increases by 12% Gacha, treasure chests, quest rewards

What are the best relics for Honkai Star Rail’s Bailu?

We recommend equipping Bailu with Passerby of Wandering Cloud to boost healing output and HP. It can be difficult to get a full set of Passerby of Wandering Cloud with your desired sub-stats, so you can mix and match with Musketeer of Wild Wheat while you’re building her.

Bailu’s best Simulated Universe relic set is Fleet of the Ageless as it further increases her max HP and therefore her healing output.

Relic set Effect Obtained from
Passerby of Wandering Cloud Two pieces equipped: increases Bailu’s outgoing healing by 10%
Four pieces equipped: immediately recover one skill point at the beginning of battle
Cavern of Corrosion: Path of Drifting in Jarilo-VI’s Corridor of Fading Echoes
Fleet of the Ageless Two pieces equipped: increases Bailu’s max HP by 12%. When her speed reaches 120 or higher, all allies’ attack increases by 8% Immersion Reward devices in World 3 of the Simulated Universe
Musketeer of Wild Wheat Two pieces equipped: increases Bailu’s attack by 10%
Four pieces equipped: increases Bailu’s speed by 6% and her basic attack damage by 10%
Cavern of Corrosion: Path of Drifting in Jarilo-VI’s Corridor of Fading Echoes

Relic stat recommendations

Main stats:

  • HP
  • HP%
  • Outgoing healing boost


  • Attack
  • Attack%
  • Lightning damage bonus

A close up of Honkai Star Rail Bailu looking dazed and waving her hand. She's sat next to a white flower and her purple hair is plaited.

What are Honkai Star Rail’s Bailu’s abilities?

Active skills:

Skill Effect
Basic attack: Diagnostic Kick (single attack) Bailu swings her dragon tail and deals lightning damage equal to 50% of her attack to a single enemy
Skill: Singing Among Clouds When Bailu shakes her gourd she immediately restores HP equal to 8% of her max HP plus 64 to an ally and invigorates them. This healing effect is randomly transferred among all allies and gets weaker by 15% with each transfer
Ultimate: Leap of Marsh Drakon Bailu immediately restores HP equal to 10.8% of her max HP plus 72 to all allies, invigorates them, and extends invigoration for allies who previously had this effect

Passive skill:

Skill Effect
Gourdful of Elixir Bailu restores HP equal to 5% of her max HP plus 50 to invigorated allies when they are hit. This can trigger twice per battle. When an ally is knocked down, Bailu immediately heals them for 22.5% of her max HP plus 180. This effect can only trigger once per battle


Skill Effect
Saunter in the Rain Before the battle starts, invigorate all allies for one turn


Skill Effect
Qihuang Analects Healing an ally above their max HP increases their max HP by 10% for two turns
Vidyadhara Geo-Veins The invigoration effect can trigger once more
Aquatic Benediction Invigorated characters take 10% less damage from attacks

What are Honkai Star Rail Bailu’s eidolons?

Eidolons in Honkai Star Rail are similar to Genshin Impact’s constellations, meaning you need to pull more than one copy of a character to unlock them. Here are Bailu’s.

Eidolon Effect
Level one – Meridian Infusion: Ambrosial Aqua If the target ally’s current HP is equal to their max HP when invigoration ends, Bailu additionally regenerates eight energy for them
Level two – Pot of Slumbering Dragon After using her ultimate, Bailu’s outgoing healing increases by an additional 15% for two turns
Level three – Enigmatic Marvel Increases the level of Bailu’s skill by two, up to a maximum of level 15, and the level of her talent by two, up to a maximum of level 15
Level four – Menace Exorcised Each instance of healing provided by Bailu’s skill makes the recipient deal 10% more damage for two turns. This effect can stack up to three times
Level five – Removal of Earthly Troubles Increases the level of Bailu’s ultimate by two, up to a maximum of level 15, and the level of her basic attack by one, up to a maximum of level ten
Level six – Drooling Drop of Draconic Divinity Bailu can heal two downed allies in total in one battle

What are Honkai Star Rail Bailu’s ascension materials?

Character EXP materials can help you get Bailu to level 80, but she needs some extra materials at certain ranks to ascend. Here are all the materials you need for each ascension rank.

You can get extinguished, glimmering, and squirming cores from flamespawns, Simulated Universe enemies, assignment rewards, from the embers exchange, or by using the omni-synthesizer. For the lightning crown of the past shadow, you need to take on the Honkai Star Rail stagnant shadow in Jarilo-VI’s corridor of fading echoes.

Required level Credits Materials
20 4k Five extinguished core
30 8k Ten extinguished core
40 16k Three lightning crown of past shadow, six glimmering core
50 40k Seven lightning crown of past shadow, nine glimmering core
60 80k 20 lightning crown of past shadow, six squirming core
70 160k 35 lightning crown of past shadow, nine squirming core

Who is Honkai Star Rail’s Bailu?

Bailu is a doctor from the Alchemy Commission who is associated with the Xianzhou Luofo, one of the six flagships of the Xianzhou Alliance. She’s a five-star lightning character, and based on her skill video, she’s a healer. She’s a member of the Vidyadhara race and can often be heard giving out unconventional ‘prescriptions’ to her patients such as “stay hydrated”.

Hoyoverse announced Bailu on the Honkai Star Rail website on January 24, 2023, along with her voice actors. Her English VA is Su Ling Chan and her Japanese VA is Kato Emiri. She has a similar hair colour and build to Genshin Impact’s Qiqi, but with two long braids down her back, two horns on her forehead that look like coral, and a large, scaly tail.

There you have it, everything you need to know about Honkai Star Rail’s Bailu. While you’re here, head over to our Genshin Impact tier list, Genshin Impact codes guide, and Genshin Impact events guide for more Hoyoverse content. We’ve got Genshin character guides too for characters like Genshin Impact’s Ayato, Genshin Impact’s Kaeya, and Genshin Impact’s Heizou.