Collei: Dendro Application Support Guide

Collei is a 4-star Dendro bow character who excels as an off-field support, providing steady Dendro application for a wide range of reaction-based teams. As one of the earliest Dendro units available to players, she offers reliable utility, simple mechanics and strong synergy with Electro, Hydro and Pyro teams built around Bloom, Hyperbloom, Burgeon and Aggravate reactions.

Role and Strengths

Collei’s primary function is to apply Dendro off-field through her Elemental Skill and Burst. Her abilities create persistent Dendro zones that continuously trigger reactions when paired with fast Electro or Hydro appliers. This makes her ideal for budget-friendly teams or early-game exploration where consistent Dendro uptime is crucial.

She also provides energy for the team thanks to her low-cost Burst, allowing smooth rotations. Her ranged kit helps maintain safety and flexibility during exploration and combat.

Abilities Overview

Collei’s Elemental Skill launches a boomerang that applies Dendro twice—once on the way out and once on the return. This double-application window allows efficient triggering of reactions such as Bloom or Aggravate. Her Elemental Burst summons a zone that periodically deals Dendro damage, enabling stable multi-target reaction setups.

Both her Skill and Burst scale with Elemental Mastery when used in reaction-focused builds, maximizing her contribution without requiring expensive artifacts or weapons.

Recommended Build

The best way to build Collei is as a pure Dendro support with Elemental Mastery or a hybrid EM/energy setup. Deepwood Memories is the strongest artifact set for lowering enemy Dendro resistance, boosting team-wide damage. Alternatively, players can run Instructor or Gilded Dreams in early and mid-game phases.

Weapons such as Sacrificial Bow, Favonius Warbow or even EM-based 3–4 star options work well depending on energy needs and team composition.

Team Synergy

Collei performs best in reaction-centric teams. She fits naturally into Bloom teams with Hydro characters, Hyperbloom setups with Electro units, and Aggravate teams with fast Electro appliers like Fischl or Kuki Shinobu. Her off-field Dendro presence ensures smooth reaction chains without requiring constant field time.

For players building Dendro-based rosters, Collei remains a strong, accessible and easy-to-use support option who enables modern reaction mechanics effectively.

Conclusion

Collei is a reliable and versatile Dendro support whose simple mechanics and strong reaction synergy make her valuable in many team compositions. With consistent off-field Dendro application, flexible gearing options and synergy with core elemental reactions, she is an excellent choice for players seeking efficient Dendro setups in Genshin Impact.