Overview
Quick Build
Artifacts
Deepwood Memories
4-Piece · Enemy Dendro RES -30%
Sands
Energy Recharge
Main stat
Goblet
Dendro DMG%
Main stat
Circlet
CRIT Rate
Substats
ER% (until ~180%) > EM > CRIT Rate
Strengths
- Versatile off-field Dendro applier
- Has an excellent F2P weapon choice — Favonius Warbow
- Has flexible artifact options
- Her cooldowns allow her to be used in a wide range of rotations
- Can be obtained for free upon clearing Floor 4 of Spiral Abyss
Weaknesses
- Somewhat dependent on Constellations 2, 4, and 6, which are massive quality-of-life improvements
- Has high Energy requirements — up to 200% ER or more
- Needs help from teammates and high investment for competitive personal damage
Talent Priority
Main source of damage or utility. Level to 10.
Level to 6–8 for meaningful gains.
Level minimally or skip.
Substat Priority
Favonius procs generate neutral particles. 180% ER keeps Cuilein-Anbar cycling consistently.
Sacrificial's CD reset allows double Skill cast. Helps generate more Dendro particles.
Without particle support, invest heavily in ER substats to maintain Burst every rotation.
Collei's Burst is her primary Dendro source. Maintain ~180–200% ER with Favonius Warbow or Sacrificial Bow. At C4+ her Burst matters even more — prioritize uptime.
Weapons
5-star Weapons
4-star Weapons
3-star Weapons
Artifact Sets

Sands
Energy Recharge
Goblet
Dendro DMG%
Circlet
CRIT Rate

Sands
Elemental Mastery
Goblet
Dendro DMG%
Circlet
CRIT Rate

Sands
Energy Recharge
Goblet
Dendro DMG%
Circlet
CRIT Rate
Team Compositions

Nilou
Main DPS

Nahida
Dendro Support

Collei
Dendro Support

Kokomi
Healer
Collei as the second Dendro unit in a Nilou Bloom team. Her off-field Cuilein-Anbar Dendro application contributes Bloom seed generation alongside Nahida's Dendro. Nilou's Bountiful Core passive converts all Blooms into empowered Bountiful Cores.

Bountiful Core passive requires all-Dendro/Hydro party. Collei fills the second Dendro slot perfectly.

Primary Dendro applicator and team EM buffer via A4 passive. Collei supplements Nahida's Dendro application for denser Bloom seed generation.

Cuilein-Anbar provides supplemental off-field Dendro. Deepwood Memories on Collei reduces enemy Dendro RES by 30%, increasing Bloom seed DMG.

Consistent Hydro for Bloom generation and healing to counter Bountiful Core self-damage. Second Hydro unit for Nilou's party requirement.
Talents & Constellations
Talents
Standard bow Normal Attack combo. Not used in a support role.
Collei throws a Floral Ring that deals Dendro DMG and returns to her, hitting enemies along the way. At C6, the ring also deals Dendro DMG on return. Generates 2 Dendro particles per cast.
Collei throws Cuilein-Anbar — a cat-shaped boomerang doll — that bounces around the field dealing AoE Dendro DMG to nearby enemies for its duration. Cuilein-Anbar is Collei's primary Dendro application tool; it remains active even when Collei is off-field.
If a party member triggers a Dendro reaction while Collei's Floral Ring is active, the ring's effect is extended by 3 seconds. Rewards teams with active Dendro reactions.
When Trump-Card Kitty ends, Collei creates a zone of Sprout petals that deal Dendro DMG every 2 seconds. An extension of Cuilein-Anbar's duration, providing additional Dendro after the doll finishes.
Constellations
Direct damage buff to Trump-Card Kitty's bouncing hits. Minor improvement.
Is it worth getting?
Small QoL. Not a pull target.
After any elemental reaction, Collei's Sprout state briefly persists, creating more Dendro application opportunities outside the Burst.
Is it worth getting?
Improved Dendro application in reaction-heavy teams. Decent constellation.
Increases Trump-Card Kitty's DMG and duration.
Is it worth getting?
Incremental.
Each Cuilein-Anbar bounce creates an Explosive Blossom that detonates dealing AoE Dendro DMG. Significantly improves Dendro application frequency and total damage.
Is it worth getting?
The most impactful Collei constellation. C4 noticeably improves her Dendro coverage in multi-target fights. Pull target for Collei investment.
Increases Floral Brush DMG.
Is it worth getting?
Minor.
Floral Ring bounces twice instead of once, dealing more hits and Dendro applications. Extra particle generation reduces Burst ER requirements.
Is it worth getting?
Solid improvement to her off-field Dendro output and energy efficiency. Good endgame constellation.
C0 is functional but noticeably weaker. Aim for C4 for meaningfully improved Dendro application in Bloom and Hyperbloom teams. First stop: C4.
Alternatives to Collei
Not sure Collei is right for you? Compare against other characters to find your best pull.

Far superior Dendro unit in every role — use Collei only when Nahida is unavailable.

Heals while providing Dendro — better for survivability-focused teams.

Best Dendro healer; strong in Bloom and Hyperbloom. Use over Collei when possible.




