Ultimate Hyacine Honkai Star Rail Guide – Best Builds, Relics, Light Cones, and Teams

Hyacine is the newest sustain character introduced in Honkai: Star Rail version 3.3. As a Wind-element Remembrance path character, she redefines what a support can do by blending strong healing, team buffs, and actual damage output. This guide will walk you through everything you need to know about Hyacine—how her kit works, her optimal builds, relics, light cones, and the best team setups to get the most out of her. Also check out how we build Anaxa in Honkai Star Rail!

Understanding Hyacine’s Skill Honkai Star Rail

Hyacine is a high-speed sustainer whose core gameplay revolves around her memosprite companion, Little Ica. Ica acts semi-independently by healing allies using its own HP when their health drops, much like Bailu’s passive. What makes Ica unique is that it doesn’t take turns normally—it only activates when Hyacine is in After Rain state.

• Healing & Damage Hybrid: Both Hyacine and Ica contribute to healing. Their healing also builds up a “healing tally,” which can be converted into AoE damage through Ica’s skill, Rainclouds, Time to Go.
• Summoning Little Ica: Ica appears when Hyacine uses her skill or ultimate. Her skill heals the team and revives Ica, while her ult heals again, increases max HP by 30% + 600, and activates the After Rain state for 3 turns.
• After Rain State: While active, Hyacine enables Ica’s follow-up-like skill usage after every Hyacine action, boosts healing output, and heals the entire team whenever any ally loses HP.
• Memosprite Damage: Ica’s attack scales off 20% of total healing done during the battle. After each use, 50% of that healing tally is consumed (or just 12% if you have E6).

Best Light Cones for Hyacine

1. [Signature Cone – Long May Rainbows Adorn the Sky]
   • Long May Rainbows Adorn the Sky boosts the wearer’s SPD by up to 30%, depending on its level. Each time the wearer uses a Basic ATK, Skill, or Ultimate, it consumes a small portion of all allies’ current HP—ranging from 1% to 2%—to fuel an additional effect. After the memosprite’s next attack, this consumed HP is converted into a powerful burst of Additional DMG, dealing 250% to 500% of the total HP used, based on the wearer’s memosprite type.
2. ‘Warmth Shortens Cold Nights’ (Free-to-play option from Herta Store)
   • Excellent synergy with her SPD scaling and team sustain.
3. ‘Time Waits for No One’
   • Provides healing and extra damage, good early choice.

Best Relic & Planar Ornament Sets

Relic Sets

• 4pc Warrior Goddess of Sun and Thunder (New Relic from 3.3): Boosts SPD and grants 15% CRIT DMG to entire party (including Ica). Tailor-made for Hyacine.
• 2pc Messenger Traversing Hackerspace + 2pc Sacerdos: Strong early option that boosts SPD and healing.

Planar Ornaments

• Giant Tree of Rapt Brooding Set (New in 3.3): Increases healing bonus and is easiest to optimize for her stats.
• Penacony Lands of the Dreams: Provides extra energy regeneration.
• Broken Keel: Adds CRIT DMG to allies if Hyacine hits the EFF RES threshold (50%).

Main Stats & Substat Priorities

Main Stats:

• Boots: SPD
• Chest: Healing Bonus (or HP% if healing is enough)
• Rope: Energy Regen
• Orb: HP%

Stat Goals:

• SPD: Aim for 200+ SPD (with Warrior Goddess set active)
• HP: At least 4500 HP base before buffs
• EFF RES: 50% for debuff immunity
• CRIT DMG: Optional, scales her damage but not a priority over healing/utility

Eidolons Breakdown

Hyacine gets major boosts from her eidolons:

• E1: +50% team max HP in After Rain + healing after ally attacks (like Luocha/Gallagher).
• E2: +30% SPD teamwide when HP is lost (activates very frequently).
• E4: Converts every point above 200 SPD to 2% CRIT DMG.
• E6: Reduces healing tally loss from 50% to 12% after Ica’s attack, significantly boosting damage.

E1 and E6 are massive upgrades; E2 can be meta-defining for speed-tuned teams.

Team Synergies

Hyacine works incredibly well in any setup that has:

• Characters who consume their own HP like Blade, Jingliu, Castorice, or Feixiao
• Hypercarry comps needing sustain with damage
• Characters that benefit from increased max HP or SPD

Recommended Teams:

1. Blade | Hyacine | Ruan Mei | Acheron
2. Castorice | Hyacine | Sparkle | Robin
3. Feixiao | Hyacine | Harmony | Pela (Debuff synergy)

Is Hyacine a Must Pull?

Hyacine brings something truly unique to the table—a hybrid role that blends high-value healing, team buffs, and decent personal damage. She is extremely versatile, easily fitting into many team comps due to her support nature and universal healing triggers.

Her value increases the more HP-draining characters you have. If you’re running teams around Blade, Castorice, or Acheron, Hyacine is a near must-pull. She also has long-term value as a standalone sustain who doesn’t fall off in damage.

Hyacine isn’t just a new support—she’s a dynamic evolution of what the sustain role can offer in Honkai: Star Rail. With her rapid speed, passive healing, and surprising damage potential, she supports your entire team while remaining active in combat.

Her build is straightforward, her impact is high, and her synergy with upcoming characters makes her a safe and powerful addition to any account. Whether you’re building for survivability or want a sustainer who can also nuke enemies through healing, Hyacine might be exactly what your team needs.