TL;DR
- Learn the best Nilou builds focusing on HP%, EM, weapons, and artifacts to unleash her full Bloom potential.
- Explore the strongest Nilou team comps using pure Hydro–Dendro synergies for massive Bountiful Core damage.
- Optimize Nilou with top weapons like Key of Khaj-Nisut and the best artifact sets for Bloom-focused gameplay.
Disclaimer: This summary was created using Artificial Intelligence (AI)
Nilou is a 5★ Hydro character first introduced in Genshin Impact Version 3.1, and since her debut, she has been known as the best Bloom specialist in the entire game. Her uniqueness lies in her ability to boost Bloom damage by up to 400%, making her a truly dedicated character for Hydro–Dendro teams.
If you want to maximize her potential, here is the complete Nilou build guide, covering her weapons, artifacts, talent priority, and best team compositions.
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Why Is Nilou So Strong in Bloom Teams?

Bloom occurs when Hydro meets Dendro, creating a Dendro Core that explodes after a few seconds. Normally, Bloom damage is fixed and does not scale with ATK, CRIT, or DMG Bonus—only Elemental Mastery (EM).

However, Nilou massively buffs the Bloom mechanic with two main effects:
1. Enhanced Bountiful Cores
If all team members consist only of Hydro and Dendro, Bloom transforms into Bountiful Cores, which:
- Explode faster
- Have a larger explosion radius
- Deal extremely high damage
2. Bonus Damage Based on Max HP
The higher Nilou’s HP goes beyond 30,000, the bigger the Bloom damage bonus your team gets, capping at +400%. This turns Bloom into a mini nuclear explosion.
In other words, your main goal when building Nilou is:
- Stack as much HP as possible.
- EM comes next if you want Nilou herself to trigger Bloom.
Nilou Talent Priority
Elemental Skill
Her main source of damage and Hydro application. Highest priority.
Elemental Burst
Provides extra damage not massive, but still useful.
Normal Attack
Lowest priority and unnecessary for Bloom-focused teams.
Stance Options: Sword Stance vs. Ring Stance
Activating Nilou’s Skill puts her into Pirouette mode. Based on your input sequence, you get:
1. Sword Stance (Skill → NA → NA → NA)
- Normal Attacks convert to HP-scaling Hydro DMG
- Faster Hydro application
- Ideal if Nilou is the on-field driver
2. Ring Stance (Skill → Skill → Skill)
- Creates a water aura around the active character
- Applies Hydro every 2 seconds
- Best for classic Bloom teams (Kokomi/Barbara on-field + Dendro support)
Most players prefer Ring Stance, as it produces consistent Blooms without needing Nilou to stay on-field.
Best Weapons for Nilou

1. Key of Khaj-Nisut (Absolute Best-in-Slot)
- Huge HP%
- Converts HP into Elemental Mastery
- Boosts both Bloom ownership and triggering. This weapon enhances every Nilou playstyle.
2. Xiphos’ Moonlight (Best at R5)
- High EM + team Energy regeneration
- Great for smoother rotations
3. Primordial Jade Cutter
- High CRIT Rate
- Bonus HP. Even though its ATK scaling isn’t useful, its raw stats are excellent.
4. Sacrificial Sword (R4+)
- Allows access to both stances in a single rotation
- Provides long-lasting Hydro application
5. Iron Sting
- Craftable
- EM + DMG Bonus. Best F2P option if you lack better choices.
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Best Artifacts for Nilou
To maximize Nilou as a Bloom DPS, the right artifact setup is crucial for consistent and explosive Bloom damage.
1. 4-pc Vourukasha’s Glow (Best HP Set)
- Large HP% boost
- Increases Skill & Burst DMG. Perfect for Sword Stance and hybrid builds.
2. 2-pc HP% + 2-pc HP%
Easy and reliable choice.
3. 2-pc EM + 2-pc HP%
For Nilou as a Bloom trigger.
Main Stats
- Sands: HP%
- Goblet: HP%
- Circlet: HP%
If Nilou is the Bloom trigger:
- Swap Circlet to Elemental Mastery.
Recommended Sub-stats
- HP%
- Flat HP
- EM
- Energy Recharge (optional)
Best Nilou Team Comps

Nilou performs optimally only in pure Hydro + Dendro teams.
1. Standard Bloom – Most Stable Composition
Nilou + Kokomi/Barbara + Nahida + Dendro Traveler
- Kokomi/Barbara = driver + healer
- Nahida = extremely fast Dendro application
- Traveler = consistent Dendro spread + battery
- Nilou = Bloom buffer
This is the best Nilou team for almost all content.
2. Double Hydro – Control Bloom Ownership
Nilou + Yelan/Xingqiu + Nahida + Collei
Here, Yelan/Xingqiu often trigger Bloom, allowing EM investment on Dendro units. Ideal if you want massive Bloom damage from units other than Nilou.
3. Sword Stance Nilou (On-field DPS)
Nilou + Kokomi + Nahida + Baizhu
- Nilou stays on-field with fast Hydro application
- Baizhu provides shields + healing
- Bloom still triggers frequently
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Nilou is a unique and extremely powerful character when used properly. With Bloom enhancements reaching up to 400%, she transforms Hydro–Dendro compositions into a massive explosion engine. Focus your build on stacking HP%, use top weapons like Key of Khaj-Nisut, and pair her with stable Dendro units like Nahida.
If you want to maximize Bloom’s full potential, Nilou is a must-have character for anyone who loves elemental reaction gameplay in Genshin Impact.

TL;DR
- Learn the best Nilou builds focusing on HP%, EM, weapons, and artifacts to unleash her full Bloom potential.
- Explore the strongest Nilou team comps using pure Hydro–Dendro synergies for massive Bountiful Core damage.
- Optimize Nilou with top weapons like Key of Khaj-Nisut and the best artifact sets for Bloom-focused gameplay.


