Theorylytics
Kokomi
HydroCatalystInazuma★★★★★

Kokomi

Published Jul 17, 2025 · Updated v5.5
Content Tier List
Spiral AbyssA
Imag. TheaterS
OverworldS
Should You Pull?YES

Kokomi is the best dedicated healer in the game and an excellent Hydro applier, particularly in Freeze, Bloom, and Taser teams. She trades a built-in -100% CRIT Rate for exceptional healing and on-field Hydro application. Pull if you want a powerful healer who doubles as a reaction enabler; skip if you already have reliable healing.

Sangonomiya Kokomi is a 5-star Hydro Catalyst character in Genshin Impact who excels at healing, applies Hydro both on-field and off-field, and deals respectable personal damage. Learn about Kokomi’s best builds, best weapons, best artifacts, and best teams in this quick guide.

HealerHydro ApplicatorOn-Field HydroFreeze SupportBloom Enabler

Overview

Quick Build

Weapon

Everlasting Moonglow

5★ · Signature — Healing Bonus substat feeds A4 Hydro DMG passive

Artifacts

Ocean-Hued Clam

4-Piece · Healing overflow becomes AoE physical DMG

Sands

HP%

Main stat

Goblet

Hydro DMG% or HP%

Main stat

Circlet

Healing Bonus

Substats

HP% > ER% (140–160%) > HP flat

Strengths

  • Excellent healing, especially in on-field playstyles
  • Good Hydro application both on- and off-field
  • Varied playstyles and flexible team building
  • Easy and comfortable gameplay
  • Plenty of accessible weapon options
  • Easy to build, needing only HP and ER in most playstyles

Weaknesses

  • Enemies can move away from Kokomi’s jellyfish, reducing her off-field Hydro application and particle generation to zero
  • Comparatively lower personal output compared to most on-field damage dealers
  • Relatively low DPS gains with vertical investment
  • Little synergy with Lunar Reactions due to her lack of CRIT
  • Her 20s Skill cooldown limits her usability with characters who prefer shorter rotations

Talent Priority

1
Level 90Priority: Max (10)

Main source of damage or utility. Level to 10.

2
Elemental SkillPriority: High (6–8)

Level to 6–8 for meaningful gains.

3
Elemental BurstPriority: High (6–8)

Level to 6–8 for meaningful gains.

4
Normal AttackPriority: Low (1–6)

Level minimally or skip.

Substat Priority

1HP%
2Healing Bonus
3Energy Recharge
4Hydro DMG%
Energy Recharge & Rotation
With Prototype Amber

Prototype Amber's passive restores 18 Energy on Burst cast, significantly reducing ER threshold. Comfortable at 140%.

~140% ER
With Everlasting Moonglow

No built-in energy restore; invest more ER in substats or pair with an energy funnel unit.

~160% ER
Freeze teams (Shenhe/Ayaka)

Particles from Ayaka and Shenhe help Kokomi's ER needs. 150% is usually sufficient with proper funneling.

~150% ER

Prototype Amber is highly recommended for F2P — its on-Burst energy regeneration lets Kokomi loop her Burst every ~18s without heavy ER investment.

Weapons

5-star Weapons

1
Everlasting Moonglow

HP% 49.6% · Base ATK 608

2
Kagura's Verity

CRIT DMG 66.2% · Base ATK 608

4-star Weapons

3
Prototype Amber

HP% 41.3% · Base ATK 510

5
Sacrificial Fragments

Elemental Mastery 221 · Base ATK 454

3-star Weapons

4
Thrilling Tales of Dragon Slayers

HP% 52.4% · Base ATK 401

Artifact Sets

Ocean-Hued Clam
SOcean-Hued ClamBest in Slot
HealingHydroDamage from Heal
2pcHealing Bonus +15%.
4pcWhen the character equipping this artifact set heals a character in the party, a Sea-Dyed Foam will appear for 3 seconds, accumulating the amount of HP recovered from healing (including overflow healing). At the end of the duration, the Sea-Dyed Foam will explode, dealing DMG to nearby opponents based on 90% of the accumulated healing. Only one Sea-Dyed Foam can be produced every 3.5 seconds. Each Sea-Dyed Foam can accumulate up to 30,000 HP.
Kokomi's Bake-Kurage and Burst healing constantly overflow, filling Sea-Dyed Foam to cap every proc. The AoE explosion adds meaningful team damage with zero effort, and the 2pc Healing Bonus directly increases both healing and, via her A4, her Hydro DMG during Burst.

Sands

HP%

Goblet

Hydro DMG% or HP%

Circlet

Healing Bonus

Tenacity of the Millelith
ATenacity of the Millelith
Team BufferHP%
2pcHP +20%
4pcWhen an Elemental Skill hits an opponent, the ATK of all nearby party members is increased by 20% and their Shield Strength is increased by 30% for 3s. This effect can be triggered once every 0.5s. This effect can still be triggered even when the character who is using this artifact set is not on the field.
When Ocean-Hued Clam is already held by Kokomi, Tenacity is a strong alternative that turns her into a team buffer. Her jellyfish ticks proc the 4pc effect consistently even while she's off-field.

Sands

HP%

Goblet

HP%

Circlet

Healing Bonus

Maiden Beloved
BMaiden BelovedFarmable
Pure HealF2P
2pcCharacter Healing Effectiveness +15%
4pcUsing an Elemental Skill or Burst increases healing received by all party members by 20% for 10s.
Use Maiden Beloved only when raw survival is needed and you can't farm Ocean-Hued Clam yet. The healing ceiling is high but you sacrifice all team damage contribution.

Sands

HP%

Goblet

HP%

Circlet

Healing Bonus

Team Compositions

Ayaka

Ayaka

Main DPS

Kokomi

Kokomi

Healer / Hydro

Kazuha

Kazuha

Support

Shenhe

Shenhe

Cryo Support

Kokomi provides consistent on-field Hydro application to keep enemies frozen with Ayaka's Cryo. Her healing solves survivability completely, freeing other slots for pure damage supports. A textbook Freeze team.

Character Synergy
Ayaka
AyakaMain DPS

Cryo Sword DPS whose Burst deals enormous Freeze-enhanced Cryo DMG. Kokomi's continuous Hydro application keeps enemies perpetually Frozen for Ayaka's CRIT Rate bonus from Blizzard Strayer.

Kokomi
KokomiHealer / Hydro

Provides continuous Hydro via Bake-Kurage and on-field Burst. Heals the team, applies Hydro for Freeze, and wears Ocean-Hued Clam for bonus AoE damage.

Kazuha
KazuhaSupport

Swirls Cryo/Hydro for grouping, RES shred, and A4 elemental DMG bonus. One of the strongest supports in any Freeze team.

Shenhe
ShenheCryo Support

Provides Cryo DMG Bonus via Icy Quill stacks and Cryo RES shred. Makes Ayaka's Burst hit dramatically harder.

Talents & Constellations

Talents

Normal AttackThe Shape of Water

3-hit Normal Attack chain dealing Hydro DMG. During Elemental Burst (Nereid's Ascension), these attacks deal dramatically increased Hydro DMG and heal nearby party members with each hit. Main source of on-field DPS during Burst window.

Hydro DMGBurst Window DPS
Elemental SkillKurage's Oath

Kokomi summons a Bake-Kurage jellyfish at a target location. The Bake-Kurage continuously applies Hydro DMG to nearby enemies and heals all nearby party members for a duration based on Kokomi's HP. Casting the Skill during Elemental Burst refreshes Bake-Kurage's duration.

Hydro AuraSustained HealHP ScalingStationary Construct
Elemental BurstNereid's Ascension

Kokomi dons the Ceremonial Garment for 10 seconds. In this state: Normal and Charged Attack DMG increases (scales with Healing Bonus via A4), every Normal/Charged/Plunging Attack heals all party members based on Kokomi's HP, and she gains increased resistance to interruption. Casting Skill during Burst refreshes Bake-Kurage duration.

Hydro DMG BuffHealing per Hit10s DurationHealing Bonus Scaling
Ascension 1Tamanooya's Casket

If Kokomi's own Bake-Kurage is on the field when she uses Nereid's Ascension, the Bake-Kurage's duration is refreshed. This synergy allows near-permanent uptime on both her Skill and Burst healing.

PassiveBake-Kurage Refresh
Ascension 4Song of Pearls

While wearing the Ceremonial Garment from Nereid's Ascension, Kokomi's Normal and Charged Attack DMG is increased by 15% of her Healing Bonus. Investing in Healing Bonus directly translates into Hydro DMG output during her Burst window.

PassiveHealing Bonus → DMG15% Conversion

Constellations

1
C1
2
C2
3
C3
4
C4
5
C5
6
C6
C1At Water's Edge

While wearing the Ceremonial Garment, the final Normal Attack in Kokomi's combo deals an additional 30% of her ATK as Hydro DMG against surrounding opponents.

Is it worth getting?

Minor damage improvement during Burst window. Not worth pulling for.

C2The Clouds Like Waves Rippling

Increases the healing of Bake-Kurage to nearby party members: characters with more than 50% HP are healed for an additional amount equal to 4.5% of Kokomi's Max HP; characters at 50% HP or less are healed for an amount equal to 4.5% of Kokomi's Max HP plus an additional +15% of Kokomi's Healing Bonus.

Is it worth getting?

Solid healing improvement. Helps in challenging content. Decent QoL but not a pull target.

C3The Moon, A Ship O'er the Seas

Increases Nereid's Ascension's level by 3, improving the Burst window DMG and healing multipliers.

Is it worth getting?

Incremental power increase. Not a reason to pull.

C4The Moon Overlooks the Waters

While wearing the Ceremonial Garment, Kokomi's Normal Attacks have a 0.5s reduced cooldown per hit and each hit regenerates 0.8 Energy. Helps Burst loop.

Is it worth getting?

Helps Burst uptime in long fights. Minor QoL.

C5All Streams Flow to the Sea

Increases Kurage's Oath's level by 3, improving Bake-Kurage healing and Hydro application.

Is it worth getting?

Improves both healing and Hydro application. Solid upgrade on the path to C6.

C6Sango Isshin

While under the effect of Nereid's Ascension, DMG from Normal and Charged Attacks is increased by 40% of Healing Bonus (stacking on top of A4's 15%), and enemies nearby have their Hydro RES reduced by 35%.

Is it worth getting?

Enormous power spike — combines with A4 for massive Hydro DMG scaling off Healing Bonus, plus personal Hydro RES shred. Makes Kokomi a genuine on-field Hydro DPS. Worth pulling if you want a powerful on-field Hydro carry.

C0 is fully viable and the standard for all content. C6 is an exceptional DPS upgrade for players who want Kokomi as an on-field Hydro carry.

Alternatives to Kokomi

Not sure Kokomi is right for you? Compare against other characters to find your best pull.

Barbara
BarbaraHydroHealer

Free 4★ healer with Hydro application; significantly weaker healing and aura maintenance.

Read Comparison
Furina
FurinaHydroSupport

Strong Hydro support but does not heal; pairs WITH Kokomi rather than replacing her.

Read Comparison
Xingqiu
XingqiuHydroSub-DPS

Better off-field Hydro DPS but no healing; does not replace Kokomi's healer role.

Read Comparison
Yelan
YelanHydroSub-DPS

Higher off-field Hydro DMG and buff; no healing to replace Kokomi.

Read Comparison
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