A Kaeya Guide
Written by Jdha#2508, Cuzimori#1535, and Alpha Flyte#2031

Updated for Version 3.8

“Kaeya. Knight of Favonius. Please, allow me to join you on your journey. Guarding you on your journey sounds far more entertaining than any of the usual Favonius stuff.”

Introduction

Kaeya is a free 4-star Cryo Sword unit in Genshin Impact who is given to players shortly after the start of the game. His simple yet powerful kit excels in various teams like Freeze and Reverse Melt. This guide will review Kaeya’s best builds, best weapons, best artifacts, best teams, Talent priority, combos, and much more.

Why Play Kaeya?

"Kaeya is an excellent knight overall - this is a fact no one can deny." - Jean

TL;DR

Credits: cuppacote, haafr, cuppacote, & baloopy

Credits: cuppacote, haafr, cuppacote, & baloopy

FAQ

Glossary

Talents

Talent Priority

Kaeya focuses on applying Cryo and dealing Cryo damage. As such, his Elemental Skill and Burst are the most important parts of his kit. However, most of the power in his Skill comes from its Cryo application and battery potential, which do not increase with Talent level. As a result, his Burst becomes his main priority, followed by his Skill. His NA Talent may be ignored if Kaeya is mostly off-field. If playing Kaeya on-field, his Normal Attacks may be leveled with similar or slightly less priority to his Skill.

> >>

Burst > Skill >> Normal Attack

Talent Overview

Constellations

Note that the DPS increases from Constellations listed below can vary a lot in practice. Kaeya’s icicles have inconsistent hit counts based on his C2’s extension, players’ positioning, and enemies’ hitbox and behaviors. For the sake of consistency, these calculations are conservative and assume that Kaeya and his enemies remain in the same position; the increases listed will not be as high as in practice. For further information on assumptions, refer to the calculation sheets from the References section.

Playstyles and Gearing

“His nature is obscure, his fate is a mystery, and his speech a vexing tapestry of both fact and fiction… Perhaps he and I share the burden of mystical sight…” - Fischl

ER Requirements

Kaeya has low ER requirements in Freeze teams because of his A4 Passive and the fact that you normally run him alongside another Cryo unit. The table below shows a few examples of ER requirements based on the number of Cryo Particles that are generated while Kaeya is off-field.

Freeze

	Two Rosaria Skills (6)	Three Rosaria Skills (9)
2 Skills	140-160%	130-140%
3 Skills	120-140%	110-120%

Reverse Melt

	Two Rosaria Skills (6)	Three Rosaria Skills (9)
2 Skills	190-220%	160-180%
3 Skills	160-190%	140-170%

Mono Cryo

	Two Ayaka Skills & Two Layla Volleys (10-14)	Two Ayaka Skills & Two Diona Hold Skills (14-18)
1 Skill	160-210%	150-180%
2 Skills	140-190%	130-160%

When not played in Freeze teams, Kaeya should catch his own particles from his Skill at least once per rotation in order to keep his ER requirements reasonable. To minimize field time, Kaeya can quickly use his Skill and then Burst to catch particles. However, prefunnelling can be inconsistent because Kaeya’s Energy drains shortly after the Burst is initially cast. 

The Energy Recharge Calculator can help determine more accurate ER thresholds based on specific enemies, particle RNG, and teammates. The tables above assume that enemies do not drop particles at certain HP thresholds, so Kaeya’s actual ER requirements may be lower. 

Kaeya has higher ER requirements if he performs fewer Elemental Skills, has no Cryo teammates, or is unable to use his A4 Passive. 

• In general, each Favonius weapon proc reduces Kaeya’s ER requirements by about 10% or less. 
• C6 also lowers Kaeya’s ER requirements by refunding Flat Energy.

Freeze

“Come on, let’s get moving. We’re not frozen in place after all.”

Freeze teams make good use of Kaeya’s full potential: massive Cryo particle generation through Kaeya's A4 Passive, short field time and cooldown, off-field damage, and self-sufficiency. Kaeya can function as both a member of a quickswap team or a support for a Cryo carry. Quickswap teams are often built without a dedicated on-field unit; they generally have more flexible rotations and room for error. 

Though Freeze teams can use many other units that have slightly worse Cryo particle generation and provide other utilities, Kaeya’s particle generation keeps him in contention in all stages of the game.

Stat Priorities

Sands	Goblet	Circlet
ATK%	Cryo DMG%	CRIT DMG/Rate

Keep in mind that a 1:2 CRIT Rate to CRIT DMG ratio is optimal when choosing artifacts. 4pc Blizzard Strayer (BS) with Cryo Resonance already provides enough CRIT Rate for Kaeya, so use a CRIT DMG Circlet to maximize his personal damage. You can use a CRIT Rate Circlet instead if he uses 4pc Noblesse Oblige (NO) with Favonius Sword.

Substat Priority:
(ER% until requirement) > ATK% > CRIT DMG > CRIT Rate

Weapons

Assumptions: KQM Standards, 4pc BS, full uptime on 4pc NO and 4pc Viridescent Venerer’s RES Shred, 2 Skills, 14 Burst ticks, one Normal Attack, no extra ER% from fluid subs required.

Weapon	DPS%	Notes
Mistsplitter Reforged R1	121%	Even though Kaeya cannot make full use of Mistsplitter’s passive, it is his Best-in-Slot (BiS) in Freeze teams because of its high Base ATK, CRIT DMG secondary stat, and useful passive.
Light of Foliar Incision R1	110%	Light of Foliar Incision is a useful stat stick for Freeze Kaeya, despite its useless passive.
Haran Geppaku Futsu R1	109%	Haran’s high Base ATK and CRIT Rate secondary stat make it a good option, though the CRIT Rate may overcap when using 4pc BS. Similar to Light of Foliar Incision, its passive is somewhat wasted on Kaeya outside of the 12% DMG Bonus.
Summit Shaper R1 (no shield)	107%	Summit Shaper provides a copious amount of ATK%, which is fairly valuable in Freeze teams.  However, as it is both difficult to slot a shielder in Kaeya’s teams and have him build stacks, Summit Shaper’s passive is somewhat neutered.
Primordial Jade Cutter R1	106%	Primordial Jade Cutter tends to overcap Kaeya’s CRIT Rate in conjunction with 4pc BS and Cryo Resonance. Nevertheless, it is still a powerful option, and gains significant value if Kaeya uses 4pc NO rather than 4pc BS.
Aquila Favonia R1	102%	Aquila has a very high Base ATK and decent passive; these traits make it usable despite its useless Physical DMG Bonus secondary stat.
The Alley Flash R5	101%	Similar to Aquila, Alley Flash remains competitive with refinements thanks to its high Base ATK and decent passive despite a useless secondary stat.
Kagotsurube Isshin	100%	Kagotsurube Isshin is Kaeya’s go-to F2P option. Note that you need to perform one Normal Attack before casting his Burst to properly make use of its passive.
The Alley Flash R1	95%	Without refinements, Alley Flash significantly drops in value.
Blackcliff Longsword (no stacks)	94%	Blackcliff has extremely poor purchase value thanks to both its mediocre performance without stacks and its high inconsistency in gaining them.
Harbinger of Dawn R5 (with passive)	93%	Maintaining Harbinger of Dawn’s passive becomes reasonably achievable when playing teams where Kaeya has a short field time and when fighting against enemies that can be Frozen. However, the stats it provides is diluted by 4pc BS and Cryo resonance.
Amenoma Kageuchi	91%	Amenoma’s Energy refund passive does very little for Kaeya, as his ER requirements are met very easily in Freeze teams. Even when attempting to battery another Cryo unit, Favonius Sword exists as a better option for the team’s overall energy economy.
The Black Sword R1	91%	Black Sword is not worth buying specifically for Freeze Kaeya because CRIT Rate is not needed and the weapon performs worse than F2P options.
Harbinger of Dawn R5 (no passive)	76%	Without its passive, Harbinger of Dawn is significantly worse.
Favonius Sword	74%	While Favonius Sword is a very poor option for damage, it can be a good option if Kaeya is acting as a battery for Energy-hungry units such as Ayaka.

Artifacts

Assumptions: KQM Standards, Kagotsurube Isshin, full uptime on 4pc NO and 4pc Viridescent Venerer’s RES Shred, 2 Skills, 14 Burst ticks, one Normal Attack, no extra ER% from fluid subs required.

Artifact	DPS%	Notes
4pc Blizzard Strayer	123%	Kaeya’s BiS for personal damage. Blizzard Strayer’s 4pc effect is tailor-made for Freeze; the copious amounts of CRIT Rate it provides pulls it  far ahead of its competitors.
2pc NO + 2pc BS	100%	While players should try to get 4pc BS or 4pc NO for Freeze Kaeya, 2pc NO + 2pc BS serves as a good transitional set while players farm the 4pc set.
4pc Emblem of Severed Fate	100%	4pc EoSF is somewhat hamstrung by Kaeya’s generally low ER requirements in Freeze teams. On the rare occasion where this is not the case, its value can increase — albeit not more than 4pc BS. Note that 2pc Emblem can be considered for 2pc combinations listed below in such a situation.
2pc ATK% + 2pc NO/BS	98%	Decent 2pc sets for those not willing to farm 4pc BS.
2pc ATK% + 2pc ATK%	95%	While generally worse than the above listed options, 2pc combinations of ATK% artifacts can pull ahead with better substats.
4pc Noblesse Oblige	92%	4pc NO is a rather poor option if there is another holder in the party. That said, if there are no other viable holders and Kaeya’s teammates benefit from its buff, 4pc NO is the best option for overall team damage while also performing similarly to 2pc ATK% + 2pc NO on Kaeya himself.

Reverse Melt

“Kaeya Alberich? He’s a Pavo Ocellus. Destined for greatness and grandeur, and to hide ugly realities behind a layer of charm and elegance.” - Mona

When played in Rosaria Reverse Melt teams, Kaeya lowers both his and Rosaria’s ER requirements while Melting some of his Element Burst hits (though not all of them due to ICD). While Kaeya can be considered as a solo Cryo character in Reverse Melt, he will have much higher ER requirements and will not make too good use of EM buffs due to his low Melt rates. As such, he is more potent as a pick to function alongside Rosaria. 

The most important part of playing Reverse Melt teams is making sure that everyone (including Kaeya) snapshots appropriate buffs with their Elemental Bursts. The preferred rotation starts with Bennett and then Rosaria, so that the full team snapshots Bennett’s Flat ATK buff and Rosaria’s CRIT Rate buff. Kaeya cannot use his A4 in this team archetype and may have reduced field time, so he has to build more ER than in Freeze teams. 

Further details on this archetype can be found from Rosaria Guide.

Stat Priorities

Sands	Goblet	Circlet
ATK%/EM/ER	Cryo DMG%	CRIT Rate/DMG

Despite Kaeya’s low Melt rate, ATK Sands and EM Sands perform similarly in Reverse Melt. Though less ideal, ER Sands can work due to Kaeya’s higher ER requirements in Reverse Melt. Players should use an appropriate Circlet to achieve a balanced CRIT ratio of 1:2.

Substat Priority:
ER% (until meeting requirement ) > CRIT > ATK% > EM

Weapons

Assumptions: KQM Standards, 2pc NO + 2pc BS, 149% ER Requirement, Pyro Resonance, dynamic uptime on Cryo Resonance and 4pc NO, 2 Skills (both Melted), 14 Burst ticks, 5 Melts), no NA hits.

Weapon	DPS%	Notes
Primordial Jade Cutter R1	124%	Without refinements on other 5-star weapons, Primordial Jade Cutter becomes a Best-in-Slot weapon in this archetype thanks to a hefty CRIT Rate secondary stat and a straightforward, unconditional Flat ATK buff from its passive.
Mistsplitter Reforged R1 (C6 Bennett)	123% (w/ C6 Bennett) - 118%(w/o C6 Bennett)	Stacks calculated dynamically. With C6 Bennett, Kaeya can gain one more stack by using a Pyro-infused Normal Attack.  Even without the additional stack from an Element-infused Normal Attack, Mistsplitter’s high Base ATK, CRIT DMG secondary stat and helpful passive make it a strong choice.
Haran Geppaku Futsu R1	116%	While Haran’s passive is mostly useless for Kaeya, the weapon is still a solid stat stick.
Light of Foliar Incision R1 (C6 Bennett)	115% (w/ C6 Bennett) - 114% (w/o C6 Bennett)	Light of Foliar Incision’s massive CRIT DMG stat outweighs Kaeya’s poor utility of its passive. With C6 Bennett, Kaeya’s Skill becomes slightly stronger.  As Kaeya’s damage mostly comes from his Burst, the lack of C6 Bennett makes hardly any difference with his overall damage.
Freedom-Sworn R1	110%	Calculated with its sigil buff proccing ONLY for Kaeya. While it is difficult for his teammates to make use of the sigil buff in a standard rotation, Freedom-Sworn can still function as a good stat stick.
Lion’s Roar R5	110%	Assumes full uptime on its passive. Lion’s Roar, with refinements, pulls far ahead of many weapons. The stats it provides Kaeya are generally helpful, and the passive is extremely potent in Reverse Melt and has an easy trigger condition.
Toukabou Shigure R5	106%	Toukabou Shigure is potentially Kaeya’s strongest F2P option in Reverse Melt for those who obtained it from its event. That said, it scales worse in multi-target situations compared to other weapon options due to its passive only affecting one target. Furthermore, its value depends on having the passive up during Kaeya’s Burst; this can be done by following a strict rotation and not starting the first rotation with Kaeya’s Skill. This technique is reliable but somewhat difficult to execute, which further lowers the weapon’s strength.
Harbinger of Dawn R5 (with passive)	106%	Harbinger of Dawn is surprisingly strong when its passive is active. That said, it can be hard to meet its HP requirement even with off-field Kaeya given that Bennett, who serves as the main healer for these teams, cannot reliably heal units above the 90% threshold.
Summit Shaper R1	102%	Calculated with no shield. Summit Shaper suffers from both Kaeya’s inability to properly gain stacks while off-field, as well as the difficulty of comfortably slotting in a shielder in Reverse Melt teams.
The Alley Flash R5	102%	Assumes Kaeya does not get hit. A fantastic Base ATK, helpful EM stat, and good passive make Alley Flash a strong option for those who have it. That said, it loses value if Kaeya is continuously taking damage due to effects such as Corrosion.
Lion’s Roar R1	101%	Even without refinements, Lion’s Roar is a competitive choice.
Kagotsurube Isshin	100%	Kaeya’s most reliable F2P option, obtained from Kazuha’s Story Quest. Simple, reliable, and effective. Players should use a Normal Attack before casting Burst in order to properly snapshot the passive.
Aquila Favonia R1	100%	Aquila is mostly a stat stick on Kaeya because of its enormous Base ATK and decent passive; while not amazing, it is still usable if players have it leveled.
The Black Sword R1	98%	While The Black Sword’s passive is mostly useless for Kaeya, the weapon still serves as a decent choice. That said, it is not worth buying specifically for him given that Kagotsurube Isshin is free and slightly better.
The Alley Flash R1	96%	Similar to Lion’s Roar, Alley Flash benefits significantly from refinements; however, it is notably worse than Lion’s Roar.
Iron Sting R5	95%	Assumes 1 stack. At R5, Iron Sting is a decent F2P option – that said, Isshin is better and Iron Sting is not particularly worth refining specifically for Kaeya.
Blackcliff Sword (no stacks)	95%	Its stacks are incredibly difficult to gain and use effectively on Kaeya, especially considering that he snapshots his Burst. Without stacks, Blackcliff Sword is worse than his F2P options.
Amenoma Kageuchi R5	95%	Amenoma is rather pitiful as Kaeya does not need most of the Energy refund it gives in most cases. Still, its passive is useful and it is usable if Isshin is unavailable.
Xiphos’ Moonlight R1	94%	Xiphos is fairly subpar; the Energy Recharge it provides for Kaeya and his team is minuscule because he does not build a lot of EM.
Iron Sting R1	93%	Without refinements, Iron Sting’s performance drops further, becoming the weakest of Kaeya’s craftable weapon options.
Key of Khaj-Nisut R1	93%	Assumes second rotation onwards. While Key is theoretically outperformed by almost all of Kaeya’s other options, the EM buff it gives teammates can make it a good option for team damage.

Artifacts

Assumptions: KQM Standards, Kagotsurube Isshin, 149% ER Requirement, Pyro Resonance, dynamic uptime on Cryo Resonance and 4pc NO, 2 Skills (both Melted), 14 Burst ticks, 5 Melts), no NA hits.

Artifact	DPS%	Notes
4pc Emblem of Severed Fate	104%	4pc Emblem of Severed Fate serves as Kaeya’s general BiS in Reverse Melt teams; while it drops in value at lower ER values, it consistently remains one of his best options — especially so if his ER needs are higher.
4pc Lavawalker	103%	Assumes full Pyro aura uptime on enemy except for 2nd Skill use per rotation. 4pc Lavawalker is one of Kaeya’s strongest options in Reverse Melt — that said, it is so close to more Resin-efficient options that farming or strongboxing for it can be inefficient.
2pc NO + 2pc BS	100%	2pc NO + 2pc BS generally performs well on Kaeya and transfers easily to his other builds.
4pc Gilded Dreams	97%	Assumes 100 EM and 14% ATK on the 4pc effect. 4pc GIlded Dreams is a competitive option, but the EM bonus it provides is underutilized since Kaeya can only Melt a third of his damage.
2pc BS/NO + 2pc ATK%/EM	96% - 97%	The difference between these 2pc combinations is marginal, and often comes down to even a single substat.
2pc ATK%/EM combinations	92% - 93%	Similar to the 2pc combinations above, the difference between these set combinations is fairly negligible.

Cryo Enabler

Kaeya’s fast Cryo application sees numerous other uses, such as helping maintain Superconduct, increasing the overall Dendro Core production with Dendro and Hydro application, or enabling Forward Melt. Though Kaeya still contributes a decent amount of damage and can snapshot significant buffs from Bennett and other sources, his investment may be less prioritized if there is an on-field character that is enabled by him. Gearing in these teams tends to have a higher focus on supportive weapons and artifacts such as Favonius Sword and 4pc Noblesse Oblige, though offensive gearing is viable as long as the team has good enough energy economy.

Enabling consistent Forward Melt requires strict rotations and specific characters. This, combined with Kaeya’s short base duration and Burst range, limits the number of characters that fully synergize with him and makes this playstyle overall niche.

Stat Priorities

Sands	Goblet	Circlet
ATK%/ER	Cryo DMG%	CRIT Rate/DMG

Adjust main stats so that Kaeya can consistently Burst every rotation. EM is useless as when enabling Forward Melts, enemies will have Cryo aura and thus Kaeya will not Melt any hits.

Substat Priority:
ER% (until meeting requirement ) > CRIT > ATK%

Team Comps & Synergies

“He’s a mysterious character! He comes and goes like the wind, and is always occupied with important business.” - Noelle

Quickswap Freeze

Quickswap Freeze teams function around using Elemental Skills and Bursts in quick succession to maintain Freeze. A Hydro unit is included for Cryo units to reliably Freeze opponents and benefit from 4pc Blizzard Strayer, while an Anemo unit aids the rest of the team through VV Shred. Each Element has a wide selection of units that contribute utilities such as grouping, healing, or additional damage.

Team Structure

Example Teams

Quickswap Freeze teams have flexible rotations, as no characters demand extended field time. Even then, players should remember to use Elemental Skills off cooldown for maximum Energy generation, snapshot buffs like 4pc NO and Kazuha’s A4, and maintain good uptime on Cryo 4pc VV Shred. Hydro VV Shred should also be maintained if the team uses strong off-field Hydro units like Xingqiu or Yelan. In such cases, Normal Attacks should be used frequently to maximize their damage and maintain Freeze through consistent Hydro application. 

There are numerous ways to run quickswap Freeze teams with different characters and rotations. A few teams below aim to exemplify how the aforementioned basics of the teams are fulfilled.

Kaeya — Chongyun — Xingqiu — Kazuha

Rotation:
Chongyun E -> Xingqiu E -> Xingqiu Q -> Kazuha Q -> Kazuha E -> Chongyun Q -> Kaeya E -> Kaeya Q -> Kazuha E -> Kaeya E -> Repeat

Kaeya — Rosaria — Yelan — Kazuha

Rotation:
Kaeya E -> Yelan E -> Yelan Q -> Kazuha E -> Kazuha Q -> Rosaria E -> Rosaria Q -> Kaeya E -> Kaeya Q -> Kazuha E -> Rosaria E -> Repeat

Kaeya — Rosaria — Mona — Venti

Rotation:
Kaeya E -> Venti E -> Venti Q -> Mona Q -> Mona E -> Rosaria E -> Rosaria Q -> Kaeya E -> Kaeya Q -> Venti E -> Rosaria E -> Repeat

Ayaka Freeze

While Kamisato Ayaka has many options to address her Energy issues, Kaeya stands out as an option to further lower her already low requirements through his excellent batterying. Her tendency to stay close to an enemy throughout the rotation means Kaeya’s Burst synergizes with her nicely as well. Kaeya can either fully commit to the role of a battery by using Favonius Sword or use a more offensive Sword while still functioning as a good Cryo battery. The team also consists of a Hydro unit to enable Freeze and an Anemo unit for grouping and 4pc VV Shred, all of which are vital for Ayaka’s personal damage.

Team Structure

Example Teams

A Freeze team around Ayaka plays similarly to quickswap Freeze, but places importance on funneling all Cryo particles into Ayaka and making sure that her Burst snapshots as many buffs as possible. Depending on how enemies spawn in Spiral Abyss, players can opt to use Ayaka’s and Kaeya’s Burst separately to deal with multiple waves of enemies that require different levels of damage output.

Ayaka — Kaeya — Kokomi — Kazuha

Rotation:
Ayaka D -> Ayaka E N1 CA -> Kazuha E -> Kazuha Q -> Kaeya E -> Kaeya Q -> Kokomi E -> Ayaka D N1 E Q -> Kazuha E -> Kaeya E -> Ayaka Dash -> Ayaka 2N2CA -> Repeat

Reverse Melt

Do note that if using an Anemo unit as a second source of Pyro application, options other than Jean will be quite unreliable. Pyro aura will be very challenging to maintain especially with the two Cryo units frequently Melting their hits. Without any more sources of Pyro application outside of Bennett, players will have to rely on very strict timings to avoid losing Pyro aura. C6 Bennett helps alleviate this issue, but not to a great extent.

Team Structure

Example Teams

As previously mentioned, Reverse Melt teams are best played when Bennett and Rosaria use their Bursts before their teammates in order for other members to snapshot the ATK and CRIT Rate buffs. 

Teams with Xiangling are able to easily maintain Pyro aura for both Kaeya and Rosaria to Melt their abilities. Using an Anemo unit instead to apply Pyro can also accomplish this with their Pyro-absorbed Bursts, but their duration is not very long. Bennett's Skill should be used to maintain Pyro aura after these Bursts expire. With C6 Bennett, frequent Normal Attacks can help maintain Pyro aura.

Kaeya — Rosaria — Xiangling — Bennett

Rotation:
Kaeya E -> Bennett Q -> Bennett E -> Rosaria E -> Rosaria Q -> Xiangling Q -> Xiangling E -> Kaeya E -> Kaeya Q -> Rosaria E -> Bennett E -> Xiangling -> Bennett E -> Xiangling -> Rosaria E -> Bennett E -> Xiangling -> Repeat

Other Potential Teams with Kaeya

“If you ever need me, let me know. Let’s not make this a transaction relationship.”

Kaeya makes a decent contribution in a good number of teams as long as they aren’t overly anti-synergetic with his Elemental Burst. His reasonable demand for Energy, flexible artifact options, and short field time mean that he can be an acceptable flex unit across many teams. A few niche uses of Kaeya are listed below.

Diluc Melt

Thanks to Kaeya’s fast off-field Cryo application, Diluc can Melt some of his attacks for significant damage. This team involves more intricacies in comparison to Diluc’s other teams and the rotation can differ depending on Kaeya and other units’ Constellations. Refer to Diluc Guide for more information.

Hu Tao Vapemelt

Hu Tao can Melt some of her attacks using Kaeya’s off-field Cryo application. It can also combine with off-field Hydro application — which Hu Tao frequently prefers to have — for occasional Freezes. Furthermore, Kaeya’s sprint Stamina cost reduction Passive also comes in handy for players that struggle to manage Hu Tao’s Stamina. It should be noted that Melt reactions across the rotation can happen at different timings depending on Hu Tao’s combos and the availability of Kaeya’s C6. In general, N1C combos tend to Melt more Charged Attacks than N2C.

Fridge

Kaeya can use his Cryo application to enable “Fridge”, where the interaction between Dendro, Cryo and Hydro auras allows for occasional Freeze uptime, making the team easier to play and allowing for increased Dendro Core production; this is especially useful for teams using auxiliary Bloom-related reactions such as Hyperbloom and Burgeon.

Mono Cryo

While Kaeya can be drafted into Mono Cryo teams, the lack of a Hydro unit to Freeze enemies makes him unable to utilize his unique A4 Passive. Shenhe Guide has further information regarding this archetype.

Credits

Writing: 

.jdha - Introduction, Q&A, Playstyles, Team Comps Synergies, Example Teams, and Other Potential Teams with Kaeya
cuzimori - Playstyles and Gearing
alphaflyte - Playstyles(Kaeya & Rosaria table), Talents and Constellations

Calculations: 

casdela & kolibri._. - Kaeya Normal Attack Combos
reddraegon - Freeze Kaeya Weapons
.pweep - Freeze Kaeya Artifacts
yolitme0 - Reverse Melt Kaeya Weapons & Artifacts
.jdha - Constellations

Rotation Videos: 

.pweep, luno_, .jdha, castiel0415

Editing and Formatting: 

latiwings - Formatting
casdela - Formatting, and comments
Leah - Editing and comments
idkanonymized - Editing and comments
nikatosaurus - Editing and comments
reddraegon - Editing
fourmana - Editing and comments
cuppacote - Editing and comments

References

• Kaeya NA Calculations Sheet

• Kaeya Freeze Weapons Calculations Sheet

• Kaeya Freeze Artifacts Calculations Sheet

• Kaeya Reverse Melt Weapons Calculations Sheet

• Kaeya Reverse Melt Artifacts Calculations Sheet

• Kaeya Constellations Calculations Sheet

Changelog

July 2023 - Updated for 3.8