Collei Pre-TC FAQ by @analog scaffold (Author, Calcs), @dark sentinel (Co-author, Consulting), @royal pike (Calcs, Troubleshooting), @ionic mulch (Calcs, Troubleshooting)
For all Collei Calcs you can reference: Collei Mastersheet by @analog scaffold and Collei Frames Mastersheet by @tardy notch
DISCLAIMER (This one is especially important)
Dendro is a new element and there are many things we still do not know about the new elemental reactions.
Pre-TC is volatile and, as always, perpetually subject to change until release (and sometimes later!). Please note that these are theoretical suggestions. Everything described in this FAQ is a good faith analysis based on the little information about the character’s kit that we know. Team calcs, additionally, are not established yet, and as with everything in TC, the content in this FAQ should be taken with a grain of salt.
Collei is a Dendro Support unit who offers fertile ground for chain reactions from other party members. Between the three Dendro characters introduced in 3.0 (including the Traveler), Collei is the only Dendro unit capable of sustaining Burning reactions while off-field, creating a special niche.
The majority of her damage comes from her Burst, and her personal damage benefits from the new Spread reaction. Her Burst also has the most frequent Dendro application of her kit at C0, maxing at four instances. Constellations change this in favor of her Skill.
To reliably Burst, Collei requires lots of Energy Recharge, as well as particle generation from characters like Raiden, Fischl, or other Dendro characters. It is recommended, then, to use an Energy Recharge weapon or Sands of Eon.
Being a bow-wielder, Collei has access to the team-buffing Elegy for the End, which also provide all the stats she wants, and has access to excellent artifact sets in the new Deepwood set, which shreds Dendro resistance, or Noblesse Oblige providing the much-appreciated 20% teamwide ATK buff and 20% personal Burst damage.
Collei's Constellations focus on improving her personal damage and Dendro Application. By C6, her raw damage is increased by roughly 30%, mostly via C2, C5 and C6. Furthermore C2 and C6 grant her 1 additional Dendro application each, improving her ability to benefit from or enable more Dendro Reactions.
Leveling priority: Burst > Skill >> Normal Attack
Analysis:
Collei’s Burst is more than 70% of her total damage output, making her Burst the most important Talent to level. Her Skill should be leveled insofar as she deals Dendro damage and will often be holding a Dendro DMG%o Goblet.
The Burst is 6-seconds long, but can be extended to 9 after initiating a Dendro-based elemental reaction – something you should be doing anyways as soon as Collei takes the field. 19 hits take place during the Burst, but due to the ICD being every 2.5 seconds without a hit-based cooldown, Collei can only apply Dendro a maximum of four times with her Burst.
Collei’s Skill throws a boomerang that applies Dendro on hit. It can hit on throw and when the boomerang returns to Collei. On return, it creates a Sprout if Collei is properly ascended, dealing another instance of Dendro damage. Her Skill then applies Dendro about three times at C0, but improves with constellations.
Normal Attacks are unimpressive, and her Aimed Shot is standard for 4-star units. Diehard Collei loyalists, however, can use charged shots to trigger Quicken, Spread, or Bloom.
As previously mentioned, the first ascension passive talent applies a negligible instance of Dendro damage via Collei’s ‘Sprout.’ The latter ascension passive talent extends the duration of her Burst – this is a must have, so ascend Collei to at least lvl 60/70 ASAP if you intend to use her.
Her passive exploration talent, much like her girlfriend, Amber, reduces gliding stamina consumption by 20%.
In typical, 20-second rotations, Collei will need around 200% Energy Recharge due to the long 12s cooldown on her Skill inadequately charging her 60-cost Burst. Collei will mostly be contributing damage and application for reactions off-field.
In longer rotations and/or in teams with many rich energy sources, these energy needs may drop to 160% or lower. Equipping weapons like an R5 Sacrificial Bow or a Favonius Warbow at any refinement rank can also reduce these needs. We strongly advise the use of an Energy Recharge calculator to plan.
The top 5 sources of energy for Collei are
- Raiden Shogun
- Fischl (due to not having caveats)
- Traveler (Electro, Dendro, or even Geo, equipped with Favonius Sword and two Skill uses)
- Tighnari (25-second rotation, two Skill uses)
- Most other characters that can use two Skills in a rotation and carry a Favonius Weapon
The Raiden Shogun and Fischl, who are both Electro units that benefit from Quicken and Aggravate reactions, are by far the best choices for controlling Collei’s energy needs. Her Dendro application will also offer a respectable buff to Raiden and a quite exploitable buff to Fischl, utilizing Fischl’s A4 passive.
It is only recommended to run one other Dendro member at most, due to Dendro’s tendency to want to interact with more than one outside element.
Additionally, Taser teams involving Fischl, Kokomi, Xingqiu, Sucrose, and the like, generate lots of energy and require a long rotation. Taser and Raiden-Fischl teams will minimize Collei’s energy needs the most (though it’s not currently known whether that translates to most damage).
Sands of Eon:
Goblet of Eonothem:
Circlet of Logos:
Sands of Eon: HP% or ER%
Goblet of Eonothem: HP%
Circlet of Logos: HP% or HB%
Electro options: Keqing / Raiden / Fischl / Yae / Sara / Beidou
Dendro options: Nahida / Tighnari / Alhaitham / Collei / Dendro Traveler
Flex options: Anemo / Any above Electro / Any above Dendro
Hydro options: Xingqiu / Yelan / Kokomi / Ayato
Pyro options: Thoma
Baizhu Pros
Nahida Pros
Anemo options: Kazuha / Venti / Heizou / Sucrose
Cryo options: Mika / Shenhe / Layla / Rosaria / Kaeya
Eula:
Freminet:
Geo options: