Theorylytics
Nilou
HydroSwordSumeru★★★★★

Nilou

Published Jul 17, 2026 · Updated v6.7
Content Tier List
Spiral AbyssS
Imag. TheaterS
OverworldA
Should You Pull?YES

Nilou is one of the strongest Hydro Supports in the current meta and worth pulling for most players.

Nilou is a 5-Star Hydro Sword user in Genshin Impact whose combat benefits provide a unique mechanic to Bloom reactions in the form of Bountiful Cores. Read our detailed Nilou guide to optimize their performance.

SwordHydroSupport

Overview

Quick Build

Weapon

Key of Khaj-Nisut

Key of Khaj-Nisut, The Dockhand's Assistant and Serenity's Call.

Artifacts

Tenacity of the Millelith

4-Piece recommended

Sands

ATK%

Main stat

Goblet

DMG%

Main stat

Circlet

CRIT Rate

Substats

CRIT Rate/DMG > ATK% > ER%

Strengths

  • Strong Hydro damage
  • Versatile team options

Weaknesses

  • Requires investment
  • Best teams use limited 5-stars

Talent Priority

1
Elemental SkillPriority: Max (10)

Primary source of damage or support. Level to 10 first.

2
Elemental BurstPriority: High (8-10)

Important for damage or support value. Level second.

3
Normal AttackPriority: Low (1-6)

Lowest priority. Level last or skip unless you have spare resources.

Substat Priority

1Energy Recharge
Nilou Standard Rotation
Standard

Cast Skill then Burst each rotation.

See build guide

Follow the recommended rotation for optimal Nilou performance.

Weapons

5-star Weapons

1
Key of Khaj-Nisut

· Base ATK 0

4-star Weapons

2

· Base ATK 0

3

· Base ATK 0

Artifact Sets

Tenacity of the Millelith
STenacity of the MillelithBest in Slot

Recommended artifact set for this build.

Sands

ATK%

Goblet

DMG%

Circlet

CRIT Rate

AVourukasha's Glow

Recommended artifact set for this build.

Sands

ATK%

Goblet

DMG%

Circlet

CRIT Rate

Team Compositions

Lauma

Lauma

Main DPS

Nilou

Nilou

Support

Nahida

Nahida

Support

Sangonomiya Kokomi

Sangonomiya Kokomi

Sustain

Since the release of Nod-Krai, Lauma has been a huge increase to Nilou team DPS. With Lauma + Nilou teams performing significantly better than other options.

Character Synergy
Lauma
LaumaMain DPS

Lauma serves as the primary Bloom trigger or driver in this Nilou team, utilizing Electro to occasionally trigger Hyperblooms if needed, or simply benefiting from the Bountiful Cores. Her unique kit interacts with the Hydro/Dendro environment to sustain high DPS.

Nilou
NilouSupport

Nilou is the core of this team, transforming standard Bloom cores into explosive Bountiful Cores with her passive. Her high HP pool also provides a minor Hydro application that fuels the reaction cycle.

Nahida
NahidaSupport

Nahida provides the essential, consistent Dendro application required to produce a high volume of Bloom cores. Her EM buff is also vital for maximizing the damage of the cores triggered by the Hydro units.

Sangonomiya Kokomi
Sangonomiya KokomiSustain

Kokomi provides necessary healing to offset the self-damage from Bountiful Cores while contributing off-field Hydro application. Her presence ensures the team can survive the rapid explosions inherent to Nilou's Bloom teams.

Talents & Constellations

Talents

Normal AttackNormal Attack

Nilou performs a sequence of Sword-based Normal Attacks.

Normal Attack
Elemental SkillDance of Haftkarsvar

Deals Hydro damage to nearby opponents, using Normal Attacks and Elemental Skills allowing you to enter Sword Dance or Whirling Steps and granting the relevant effect once the Skill ends.

Elemental Skill
Elemental BurstDance of Abzendegi: Distant Dreams, Listening Spring

Deals AoE Hydro damage applying Hydro as well as an effect called Lingering Aeon, which deals additional Hydro damage shortly after.

Elemental Burst

Constellations

1
C1
2
C2
3
C3
4
C4
5
C5
6
C6
C1Dance of the Waning Moon

Dance of Haftkarsvar will be enhanced as follows. - Luminous Illusion DMG is increased by 65%. - The Tranquility Aura's duration is extended by 6s.

Is it worth getting?

Decent early constellation. Useful quality-of-life improvement.

C2The Starry Skies Their Flowers RainPull Target

Decreases Hydro Resistance and Dendro Resistance both by 35%.

Is it worth getting?

Strong constellation meaningful power increase worth targeting.

C3Beguiling Shadowstep

- Increases the Level of Dance of Abzendegi: Distant Dreams, Listening Spring by 3. - Maximum upgrade level is 15.

Is it worth getting?

Situational improvement. Worth it once you have earlier constellations.

C4Fricative Pulse

After using your Elemental Skill, gain 15 energy and increase Burst damage.

Is it worth getting?

Situational improvement. Worth it once you have earlier constellations.

C5Twirling Light

- Increases the Level of Dance of Haftkarsvar by 3. - Maximum upgrade level is 15.

Is it worth getting?

Situational improvement. Worth it once you have earlier constellations.

C6Frostbreaker's MelodyPull Target

- For every 1,000 points of Max HP, Nilou's CRIT Rate and CRIT DMG will increase by 0.6% and 1.2% respectively. - The maximum increase in CRIT Rate and CRIT DMG via this method is 30% and 60% respectively.

Is it worth getting?

Major constellation that significantly changes the character. Recommended for dedicated mains.

C0 Nilou is solid and clears all content without any constellations.

Alternatives to Nilou

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

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