Hyacine Complete Build Guide

Version: 3.4+ | Updated: 2026-03-04 | Sources: Game8, Icy Veins, LDShop, TheGamer

Overview

Hyacine is a 5-star Wind Remembrance character specializing in high-speed healing and Memosprite support. She's the fastest sustain unit in Honkai: Star Rail and excels with HP-scaling DPS characters.

Why Hyacine is S+ Tier Sustain

🌀 Fastest Healer: Base 110 SPD, can reach 200+ in combat
💚 Party-wide Healing: Heals all allies + HP scaling damage
🎭 Memosprite Support: "Little Ica" provides additional utility
⚡ Acheron Synergy: Signature LC provides debuff stacks

Character Stats

Stat	Value	Rank
Base HP	1,086	18th
Base ATK	388	28th
Base DEF	630	6th
Base SPD	110	4th (Fastest sustain!)

Best Relic Sets

1. Warrior Goddess of Sun and Thunder (4pc) - Best in Slot

Set Bonus	Effect
2pc	SPD +6%
4pc	When healing allies, increases party CRIT DMG

Why it's best: Provides SPD for her kit AND party CRIT DMG buff through healing.

2. Alternative Options

2pc Warrior Goddess + 2pc Messenger: More SPD stacking
2pc Sacerdos + 2pc Messenger: If lacking Warrior Goddess pieces

Planar Ornaments

Priority	Set	Notes
1	Giant Tree of Rapt Brooding	SPD + healing boost based on SPD
2	Broken Keel	Party CRIT DMG (already has Effect RES)
3	Amphoreus	Party SPD when Memosprite active

Main Stats

Piece	Main Stat	Why
Body	Outgoing Healing	Core healing output
Feet	SPD	Essential for kit
Sphere	HP%	Healing + damage scaling
Rope	Energy Regen	Ultimate uptime

Stat Benchmarks

Stat	Target	Notes
SPD	200+ in combat	Activates Tempestuous Halt Bonus Ability
HP	4,500+	Outside combat baseline
CRIT DMG	50%+	Nice to have (100% CRIT Rate built-in)

How to Reach 200 SPD

Signature LC: +24% SPD base
4pc Warrior Goddess: +6% SPD
Giant Tree Ornament: +6% SPD
SPD Boots: +25 flat SPD
Substats: 2+ SPD rolls per piece

Best Light Cones

Rank	Light Cone	Stars	Notes
1	Long May Rainbows Adorn the Sky	⭐⭐⭐⭐⭐	Signature, +SPD, enemy debuff
2	Memory's Curtain Never Falls	⭐⭐⭐⭐⭐	F2P, +SPD, party DMG buff
3	This Love, Forever	⭐⭐⭐⭐⭐	HP scaling alternative
4	Victory In a Blink	⭐⭐⭐⭐⭐	General Remembrance option

Signature LC Analysis

Long May Rainbows Adorn the Sky is not mandatory but provides unique utility:

Increases enemy damage taken
Stacks Acheron's Slashed Dream
Enables Blade/Castorice HP consumption synergy

Team Compositions

Best Team: Castorice HP Drain

Character	Role	Why
Hyacine	Sustain	HP healing enables Castorice's Newbud
Castorice	Main DPS	HP consumption + scaling
Evernight	Sub-DPS	Memosprite synergy
Cyrene	Support	Additional buffs

HP-Scaling Team

Character	Role	Notes
Hyacine	Sustain	-
Blade	Main DPS	HP consumption triggers LC effect
Tribbie	Support	HP scaling + RES PEN
Sunday/Sparkle	Buffer	CRIT DMG or SP generation

Acheron Team (With Signature LC)

Character	Role	Notes
Hyacine	Sustain	LC provides Slashed Dream stacks
Acheron	Main DPS	Benefits from LC debuff
Jiaoqiu/Pela	Debuffer	Standard Acheron support
Flex	-	Based on content

F2P Team

Character	Role	Notes
Hyacine	Sustain	-
Any CRIT DPS	Main DPS	Benefits from HP buff
Trailblazer (Ice)	Support	Free Remembrance option
Pela	Debuffer	DEF shred

Trace Priority

Priority	Trace	Reason
1	Skill	Primary healing ability
2	Talent	Memosprite mechanics
3	Ultimate	Party HP buff + damage
4	Basic ATK	Lowest priority

Eidolon Analysis

Eidolon	Value	Effect
E0	★★★★★	Complete kit
E1	★★★★	Enhanced Memosprite attacks
E2	★★★★	More healing output
E4	★★★	SPD boost after Ultimate
E6	★★★★	Ultimate enhancement

Recommendation: E0 is fully functional. E1 adds damage utility.

Gameplay Tips

SPD is Everything: Reach 200 SPD in combat for maximum healing
Memosprite Timing: Little Ica attacks can trigger Acheron stacks
HP Buffer: Her Ultimate increases party Max HP
Turn Economy: High SPD means 2+ turns per wave
Not Just Healing: Built-in 100% CRIT Rate means decent damage

Who Should Pull?

✅ Pull If:

You have Castorice or HP-scaling DPS
You want the fastest sustain unit
You use Acheron and want LC utility

❌ Skip If:

You already have Fu Xuan/Aventurine/Gallagher built
You don't use HP-scaling teams
Limited Stellar Jade budget