Sangonomiya Kokomi Build Guide | Best Artifacts, Weapons & Teams

Who Is Sangonomiya Kokomi?

Sangonomiya Kokomi is a 5-star Hydro Catalyst character from Inazuma, released in Version 2.1 (September 1, 2021). She is the Divine Priestess of Watatsumi Island and the foremost healer in the game. Her gameplay centers on the Bake-Kurage (jellyfish) from her Elemental Skill, which provides continuous Hydro application and healing, and her Burst's Ceremonial Garment state, which enhances her Normal Attacks and team-wide healing. She excels as an on-field Hydro driver in Freeze, Electro-Charged, and Hyperbloom teams, offering unparalleled healing and Hydro application.

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Skill Mechanics and Talent Priority

Normal Attack: The Shape of Water

Performs up to 3 consecutive Hydro DMG attacks shaped like swimming fish.
Charged Attack: Consumes Stamina for AoE Hydro DMG.
Plunging Attack: Deals AoE Hydro DMG on impact.

Elemental Skill: Kurage's Oath

Cooldown: 20s. Duration: ~12s (7 ticks).

Summons a Bake-Kurage that deals Hydro DMG and heals the active character based on Max HP every 2s.
Applies Wet to Kokomi. Snapshots her stats at cast.

Elemental Burst: Nereid's Ascension

Energy Cost: 70. Cooldown: 18s. Duration: 10s.

Deals AoE Hydro DMG and dons a Ceremonial Garment:
- Normal/Charged Attack and Bake-Kurage DMG scaled by Max HP.
- NA/CA hits heal all nearby party members based on Max HP.
- Raises interruption resistance and lets her walk on water.
Effects clear when she leaves the field.

Passive Talents

Talent	Unlock	Effect
Tamakushi Casket	Ascension 1	Refreshes Bake-Kurage duration on Burst use.
Song of Pearls	Ascension 4	While in Ceremonial Garment, NA/CA DMG Bonus receives extra scaling equal to 15% of Healing Bonus.
Princess of Watatsumi	Utility	Reduces swimming stamina consumption.

Talent Leveling Priority

Elemental Burst (Q) = Elemental Skill (E) > Normal Attack (A)

Equal Priority: Burst and Skill — both contribute the bulk of damage and healing.
Normal Attack: Level evenly as on-field driver. Contributes through Burst state NA DMG.

Best Artifacts

Recommended Sets

Set	Bonus	When to Use
4pc Ocean-Hued Clam	Healing +10%; Physical DMG bubble from healing	Best for personal DMG. Converts overhealing into DMG.
4pc Tenacity of the Millelith	HP +20%; team ATK +20% after Skill	Best for support. Near-permanent 4pc effect with Skill uptime.
2pc Healing Bonus + 2pc Heart of Depth	Mixed healing and Hydro DMG	Transition build.

Main Stats

Slot	Main Stat
Sands	HP% / Energy Recharge
Goblet	Hydro DMG Bonus
Circlet	Healing Bonus / HP%

Substats Priority: Energy Recharge (until threshold) > HP% > Flat HP ≈ ATK% > Elemental Mastery

Energy Recharge Requirement: ~170–200%+ (lower with Prototype Amber / Everlasting Moonglow energy refund; higher with Thrilling Tales)

Best Weapons

Weapon	Rarity	Why
Everlasting Moonglow	⭐⭐⭐⭐⭐	Signature weapon. Provides every stat she wants — HP%, NA DMG, healing. Best in slot.
Prototype Amber	⭐⭐⭐⭐	Best F2P personal-DMG option. Forgeable, refunds energy, lowers ER needs.
Thrilling Tales of Dragon Slayers	⭐⭐⭐	Top support pick at R5. +48% ATK to teammate, HP% substat benefits her.
Hakushin Ring	⭐⭐⭐⭐	Strong in Electro-Charged teams. Buffs Electro teammates at high refinement.

Constellations

Constellation	Effect	Value
C0	Fully functional. Core kit is complete.	—
C1 — At Water's Edge	Final NA string in Burst releases an extra Hydro fish (30% Max HP) with separate ICD.	Improves Hydro application. Best low-con value.
C2 — The Clouds Like Waves Rippling	Extra healing to characters below 50% HP.	Not recommended — overheal, conditional.
C4 — The Moon Overlooks the Waters	+10% NA speed in Burst and 0.8 energy per hit.	Strong QoL, lowers ER needs.
C6 — Sango Isshin	After healing an ≥80% HP character during Burst, +40% Hydro DMG for 4s.	Damage ceiling spike.

Recommendation: C0 is the optimal stopping point. C1 offers the best low-con value for Hydro application. C6 is the only damage-ceiling spike. C2 is not recommended due to overheal.

Team Compositions

Electro-Charged Team (On-field)

Kokomi serves as the on-field Hydro driver while Beidou and Fischl provide off-field Electro for Electro-Charged reactions.

Character	Role
Sangonomiya Kokomi	On-field Hydro driver, healer
Beidou	Off-field Electro DPS, damage reduction
Fischl	Off-field Electro sub-DPS, energy
Sucrose / Kazuha / Venti	VV RES shred, grouping

Freeze Team (Morgana Variant)

Kokomi replaces Mona for genuine healing while Ganyu and Venti provide Cryo DMG and grouping.

Character	Role
Sangonomiya Kokomi	Healer + Hydro application
Ganyu	On-field Cryo DPS
Venti	VV RES shred, grouping, energy
Diona / Ayaka / Kaeya	Cryo resonance, additional Cryo application

Ayaka Freeze Team

Kokomi provides healing and Hydro while Ayaka serves as the main Cryo DPS.

Character	Role
Sangonomiya Kokomi	Healer + Hydro application
Kamisato Ayaka	On-field Cryo DPS
Rosaria / Kaeya	Cryo sub-DPS, Cryo resonance
Kazuha / Sucrose	VV RES shred, grouping

Ascension Materials

Material	Source
Varunada Lazurite (Sliver/Fragment/Chunk/Gemstone)	Hydro Hypostasis, Oceanid
Sango Pearl ×168	Inazuma local specialty (found near Watatsumi Island)
Spectral Husk / Spectral Heart / Spectral Nucleus	Specter drops
Dew of Repudiation ×46	Hydro Hypostasis boss

Talent Materials:

Material	Source
Transience (Teachings / Guide / Philosophies)	Violet Court domain (Mon/Thu/Sun)
Molten Moment	La Signora weekly boss (Narukami Island: Tenshukaku)

Summary

Sangonomiya Kokomi is the game's premier healer and on-field Hydro driver, whose Bake-Kurage provides continuous Hydro application and healing while her Burst enhances both her DMG and team-wide sustain. Build her with 4pc Ocean-Hued Clam for personal DMG or 4pc Tenacity of the Millelith for support. Prioritize HP% and ER until her requirement is met. Everlasting Moonglow is her best weapon, but Prototype Amber and Thrilling Tales of Dragon Slayers are excellent F2P alternatives. C0 is fully functional and meta-defining; C1 offers the best low-con value for improved Hydro application. She fits into Freeze, Electro-Charged, and Hyperbloom teams with equal proficiency.

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