Collei build recommendations
Usage
Weapons
Artifacts
Artifact stats priority
sands — er, atk%, em 
goblet — dendro dmg, em 
circlet — crit rate, crit dmg, em
Substats priority
- er
- crit rate, crit dmg
- atk%, em
Talents Priority
- burst
- skill
Notes
Typical Collei Rotation
Skill > Burst > Swap
Rotation with
N1 > tap Charged Attack > Skill > Burst > Swap
Energy Recharge Guidelines
160–200% (Depending on Team and weapon)
Collei is a Bow User who provides off-field support in Dendro application and damage.
Regarding Weapon Choices
While this weapon provides the highest personal damage, it is generally not recommended as team buffs provide more teamwide damage over a small increase in personal damage.
Not recommended below R4 due to it delaying rotation, possibly resulting in damage loss.
Regarding Artifact Sets
Collei's Sprout damage counts as Skill damage, which allows her to be able to keep Tenacity of the Millelith up during important damage windows. Generally an alternative to or (or if you are already running both in a team).
This set is only used in a team where Collei is used to trigger reactions (i.e. Bloom/Burning teams), and does not benefit Collei if she is used as an aura.
An alternative option if they are placed in the same team as Cyno to help his Energy Recharge needs.
Shout out to Emiliabyss#1641 for providing an in-depth reference.
Usage
Ascension materials
Artifacts
Artifact stats priority
sands — er, atk%, em goblet — dendro dmg, em circlet — crit rate, crit dmg, em
Substats priority
er crit rate, crit dmg atk%, em
Talents Priority
- burst
- skill