Best Build for Nilou in Genshin Impact

Best Build for Nilou in Genshin Impact
Nilou is a 5-star Hydro Hydro sword character in Genshin Impact. This guide covers the best builds, weapons and artifacts for Nilou.

Pros & Cons

  • Dual On-Off Field playstyle
  • Her talents alter a reaction mechanic, bringing something new to the table
  • Easy to build and F2P friendly: her damage scales off HP, and talent level up isn't a priority due to Bloom scalings' nature
  • Her best team is made of free units
  • Niche but very effective
  • Excellent DPR in both AoE and Single Target scenarios
  • Locked to a only Hydro and Dendro team
    • Crowd Control, Shielding and 4pc VV aren't accessible
    • Nilou can fit in teams such as Vaporize and Freeze buth both her passive talents won't be put to use
  • Needs a healer (Dendro Cores inflict self damage)
  • Teammates need to carry EM in their builds as Bloom ownership is pretty much random
  • Relies on Dendro units
  • Nilou's team struggles against Cryo shields

Teams

For a detailed breakdown of the best Nilou teams go to the Nilou team guide page.

Builds

Nilou is both a On-Field and Off-Field Bloom DPS. Her damage and playstyle are centered around the Bloom reaction (Dendro + Hydro). Nilou's Skill consists of 4 Hydro hits and upon casting the fourth one she enters in two different stances:

  • If you use her Elemental Skill as 4th hit, Nilou will create a Hydro ring that applies the element and doesn't deal damage. She is meant to be played Off-Field. (The Skill icon will change before this hit is dealt)
  • If you use her Normal Attack as 4th hit, Nilou will deal Hydro DMG with her normal attacks. This is the On-Field stance.

Use both versions at your better convenience. It's recommended to start the battle with the Off Field version, so that you can trigger reactions even while setting up.

Talent Priority

Skill > Burst
Bloom DMG doesn't consider talent multipliers so they shouldn't be taken into priority. Normal Attacks talent ismuseless as the On-Field stance deals DMG based on Skill's multipliers

Stat Priority

Main stats: HP%/HP% or Hydro DMG%/HP%
Sub stats: HP%/ER%/HP/Crit/EM
Nilou appreciates HP a lot. It is recommended to have around 100-130% ER% to cast Burst every other rotation. Crits are fine as substats but shouldn't be prioritized over HP. Hydro DMG goblet gives her more Burst/personal DMG at the cost of 2-3k less DMG from blooms.

Weapon Weapons
Best Weapons

Nilou's signature weapon, which perfectly fits her playstyle.

Sunken Song of the Sands
HP increased by 20~40%. When an Elemental Skill hits opponents, you gain the Grand Hymn effect for 20s. This effect increases the equipping character's Elemental Mastery by 0.12~0.24% of their Max HP. This effect can trigger once every 0.3s. Max 3 stacks. When this effect gains 3 stacks, or when the third stack's duration is refreshed, the Elemental Mastery of all nearby party members will be increased by 0.2~0.4% of the equipping character's max HP for 20s.

4 star alternatives that give EM and have useful passive abilities. Refinements are recommended.

Xiphos' Moonlight
Elemental Mastery
Star Star Star Star
Jinni's Whisper
The following effect will trigger every 10s: The equipping character will gain 0.036~0.072% Energy Recharge for each point of Elemental Mastery they possess for 12s, with nearby party members gaining 30% of this buff for the same duration. Multiple instances of this weapon can allow this buff to stack. This effect will still trigger even if the character is not on the field.
Iron Sting
Elemental Mastery
Star Star Star Star
Infusion Stinger
Dealing Elemental DMG increases all DMG by 6~12% for 6s. Max 2 stacks. Can only occur once every 1s.
Weapon Variations
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ER% options

Both Sacrificial and Favonius provide ER% to Nilou and extra particles to the team. Consider using these if you want to use Nilou's Burst in every rotation.

Sacrificial Sword
Energy Recharge
Star Star Star Star
Composed
After dealing damage to an opponent with an Elemental Skill, the skill has a 40~80% chance to end its own CD. Can only occur once every 30~16s.
Favonius Sword
Energy Recharge
Star Star Star Star
Windfall
CRIT hits have a 60~100% chance to generate a small amount of Elemental Particles, which will regenerate 6 Energy for the character. Can only occur once every 12~6s.
Stat sticks

Freedom-Sworn gives a great amount of EM but its passive isn't of any use in Nilou's team.

Freedom-Sworn
Elemental Mastery
Star Star Star Star Star
Revolutionary Chorale

A part of the "Millennial Movement" that wanders amidst the winds.

Increases DMG by 10~20%.

When the character wielding this weapon triggers Elemental Reactions, they gain a Sigil of Rebellion. This effect can be triggered once every 0.5s and can be triggered even if said character is not on the field.

When you possess 2 Sigils of Rebellion, all of them will be consumed and all nearby party members will obtain "Millennial Movement: Song of Resistance" for 12s.

"Millennial Movement: Song of Resistance" increases Normal, Charged, and Plunging Attack DMG by 16~32% and increases ATK by 20~40%. Once this effect is triggered, you will not gain Sigils of Rebellion for 20s.

Of the many effects of the "Millennial Movement," buffs of the same type will not stack.

It isn't really recommended to run a Crit weapon on Nilou, but it's indeed viable for better personal damage.

Protector's Virtue
HP increased by 20~40%. Additionally, provides an ATK Bonus based on 1.2~2.4% of the wielder's Max HP.
Honed Flow
Obtain 12% All Elemental DMG Bonus. When other nearby party members use Elemental Skills, the character equipping this weapon will gain 1 Wavespike stack. Max 2 stacks. This effect can be triggered once every 0.3s. When the character equipping this weapon uses an Elemental Skill, all stacks of Wavespike will be consumed to gain Rippling Upheaval: each stack of Wavespike consumed will increase Normal Attack DMG by 20% for 8s.
Mistsplitter's Edge

Gain a 12~24% Elemental DMG Bonus for every element and receive the might of Mistsplitter's Emblem. At stack levels 1/2/3, Mistsplitter's Emblem provides a 8/16/28~16/32/56% Elemental DMG Bonus for the character's Elemental Type.

The character will obtain 1 stack of Mistsplitter's Emblem in each of the following scenarios: Normal Attack deals Elemental DMG (stack lasts 5s), casting Elemental Burst (stack lasts 10s); Energy is less than 100% (stack disappears when Energy is full). Each stack's duration is calculated independently.
Vigorous
When HP is above 90%, increases CRIT Rate by 14~28%.
Artifact Artifacts
Best Set

Any combination of 2pc Tenacity + one of the listed sets will do the trick.

2 HP +20%.
2 Hydro DMG Bonus +15%.
2 Increases Elemental Mastery by 80.
2 Elemental Mastery +80.
Artifact Variations
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This set is recommended only if no other party members are suitable for holding it (they will most likely be able to though)

2 Dendro DMG Bonus +15%.
4 After Elemental Skills or Bursts hit opponents, the targets' Dendro RES will be decreased by 30% for 8s. This effect can be triggered even if the equipping character is not on the field.

Nilou is able to trigger vaporize if played with a strong Pyro enabler such as Xiangling. Note that this build doesn't reflect the way Nilou is intended to be played. Check the Bloom DPS build for her best setup.

Talent Priority

Skill = Burst
In this build talent scalings are very important and need considerable investment.

Stat Priority

Main stats: HP%/Hydro DMG%/Crit
Sub stats: ER (until comfortable with Burst uptime)/Crit/HP/EM Crit stats and EM are very valuable here, considering how Vaporize works.

Weapon Weapons
Best Weapons

Nilou's signature weapon will outdamage any other option in this setup as well. Best in slot.

Sunken Song of the Sands
HP increased by 20~40%. When an Elemental Skill hits opponents, you gain the Grand Hymn effect for 20s. This effect increases the equipping character's Elemental Mastery by 0.12~0.24% of their Max HP. This effect can trigger once every 0.3s. Max 3 stacks. When this effect gains 3 stacks, or when the third stack's duration is refreshed, the Elemental Mastery of all nearby party members will be increased by 0.2~0.4% of the equipping character's max HP for 20s.

Any 5 star Crit weapon is also great on a Vaporize Nilou. Harbinger of Dawn is also on par with these expensive options thanks to Nilou's HP scaling, that makes its low base ATK irrelevant.

Protector's Virtue
HP increased by 20~40%. Additionally, provides an ATK Bonus based on 1.2~2.4% of the wielder's Max HP.
Honed Flow
Obtain 12% All Elemental DMG Bonus. When other nearby party members use Elemental Skills, the character equipping this weapon will gain 1 Wavespike stack. Max 2 stacks. This effect can be triggered once every 0.3s. When the character equipping this weapon uses an Elemental Skill, all stacks of Wavespike will be consumed to gain Rippling Upheaval: each stack of Wavespike consumed will increase Normal Attack DMG by 20% for 8s.
Mistsplitter's Edge

Gain a 12~24% Elemental DMG Bonus for every element and receive the might of Mistsplitter's Emblem. At stack levels 1/2/3, Mistsplitter's Emblem provides a 8/16/28~16/32/56% Elemental DMG Bonus for the character's Elemental Type.

The character will obtain 1 stack of Mistsplitter's Emblem in each of the following scenarios: Normal Attack deals Elemental DMG (stack lasts 5s), casting Elemental Burst (stack lasts 10s); Energy is less than 100% (stack disappears when Energy is full). Each stack's duration is calculated independently.
Vigorous
When HP is above 90%, increases CRIT Rate by 14~28%.
Weapon Variations
Show more
EM options

Great to buff reaction damage. These weapons also feature useful passives for Nilou and/or her team.

Freedom-Sworn
Elemental Mastery
Star Star Star Star Star
Revolutionary Chorale

A part of the "Millennial Movement" that wanders amidst the winds.

Increases DMG by 10~20%.

When the character wielding this weapon triggers Elemental Reactions, they gain a Sigil of Rebellion. This effect can be triggered once every 0.5s and can be triggered even if said character is not on the field.

When you possess 2 Sigils of Rebellion, all of them will be consumed and all nearby party members will obtain "Millennial Movement: Song of Resistance" for 12s.

"Millennial Movement: Song of Resistance" increases Normal, Charged, and Plunging Attack DMG by 16~32% and increases ATK by 20~40%. Once this effect is triggered, you will not gain Sigils of Rebellion for 20s.

Of the many effects of the "Millennial Movement," buffs of the same type will not stack.
Xiphos' Moonlight
Elemental Mastery
Star Star Star Star
Jinni's Whisper
The following effect will trigger every 10s: The equipping character will gain 0.036~0.072% Energy Recharge for each point of Elemental Mastery they possess for 12s, with nearby party members gaining 30% of this buff for the same duration. Multiple instances of this weapon can allow this buff to stack. This effect will still trigger even if the character is not on the field.
Iron Sting
Elemental Mastery
Star Star Star Star
Infusion Stinger
Dealing Elemental DMG increases all DMG by 6~12% for 6s. Max 2 stacks. Can only occur once every 1s.
Artifact Artifacts

Any combination of 2pc Tenacity + one of the listed sets is the best possible equipment on a Vaporize DPS Nilou.

2 HP +20%.
2 Hydro DMG Bonus +15%.
2 Increases Elemental Mastery by 80.
2 Elemental Mastery +80.
2 Elemental Burst DMG +20%.

All Hydro Characters