Chaos Zero Nightmare (CZN)

Kayron Best Team and Build

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Last updated on: November 26, 2025 11:05 PM

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This is a guide for the best teams and loadout for Kayron in Chaos Zero Nightmare (CZN). Learn which combatants are best to pair with Kayron, as well as recommended cards, partners, and equipment.

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Team and Build	Cards and Materials

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List of Contents

Best Kayron Build
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Best Kayron Build

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

Build Overview

DPS Party List
Kayron	Mika	Rei
Access on single-target, AoE attacks and healing Can scale infinitely Relies heavily on specific card epiphanies AP Hungry team

Kayron has access to single-target damage with his Black Hole or Echoes of Futility card. He also has AoE attacks with Brand of Annihilation and healing with Oath of Vanity. The longer the fight, the stronger his attacks become thanks to Rei and Mika's support that he lacks such as AP generation, buffs and more card exhausts.

Build Changelog

Date	Changes
11-18-2025	・Added Kayron build overview ・Revised Kayron build page layout
10-26-2025	・Combined the 1-cost build and AoE burst into one viable setup. ・Updated recommended cards and playstyle.

Kayron Best Team

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

Support	Sub-DPS
Mika	Rei

Mika and Rei are Kayron's best teammates. Mika handles healing and AP generation support. Rei serves as the Sub-DPS, focusing primarily on buffing Kayron's Void cards.

Alternative Team Members

Character	Explanation
Cassius	Can replace Rei as the Card Puller of the team. You can utilize his ability to cycle Kayron's main DPS cards as much as possible.

Kayron Best Cards

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

Card	Epiphany Effect
Echo of Futility	AP Cost: X ・50% Damage ・+150% Damage Amount by the same amount X ・Create X + 1 Futility card(s)
Brand of Annihiliation	AP Cost: 7: ・500% Damage to all enemies ・Decrease cost by number of Exhausted Futility
Black Hole	AP Cost: 2 ・300% Damage ・+1 hit per 5 Exhausted Futility (Max 2)
Oath of Vanity	AP Cost: 0 Tags: Initiation, Unique ・Upon creating Futility, changes to an Attack card with 80% Damage and Healing effect, cost 1
Echoes of True Abyss	AP Cost: 2 ・240% damage ・Create 3 Futility cards ・+40% Damage as that amount

The goal of this setup is to consistently deal damage while exhausting Futility cards, then unleash massive damage after exhausting many of them. The upgraded Echo of Futility (with the X cost) not only deals significant damage but also guarantees the creation of numerous Futility cards. Oath of Vanity, upgraded with the Outbreak of War tag, provides damage-dealing Futility cards right from the start, enabling a more consistent setup.

Choosing the 500% AoE damage (7-Cost) upgrade for Brand of Annihilation seems like a downgrade, but you can actually benefit more from this card in the long run since you will be creating and Exhausting a lot of Futility cards. Alternatively, you can choose the option where it hits twice instead of targeting all enemies; this becomes extremely potent against single targets like bosses.

Black Hole, with its upgrade adding an extra hit per 5 exhausted Futility cards, incentivizes you to spend Futility cards while increasing overall damage output. Lastly, Echoes of True Abyss will allow you to create even more Futility cards while dealing considerable damage.

Essential Team Cards and Epiphanies

Card	Epiphany Effect
Source of Water	AP Cost: 0 ・Heal 150% ・1 AP ・1 Wave
Blessing of Waves	AP Cost: 1 Tags: Retain ・Heal 150% ・+30% Healing equal to number of AP ・Shield equal to Healing amount exceeding max
Tactical Analysis	AP Cost: 0 ・2 Wave ・For 1 turn, +100% own Healing
Deluge	AP Cost: 1 Tags: Unique ・1 Wave ・At the start of the turn, gain 1 Wave
Strike of Darkness	AP Cost: 0 Tags: Retain ・Activate all Basic cards in hand
Resonating Darkness	AP Cost: 1 Tags: Unique ・+40% Damage for Void Card
Snack Time	AP Cost: 0 Tags: Exhaust ・Select 2 card(s) in hand to Exhaust ・Select 1 Void card(s) to Draw
Dark Condensation	AP Cost: 1 ・Select 1 Attack card(s), +100% Damage until used
Predator's Blade	AP Cost: 1 ・250% Damage ・ For 1 turn 2 Morale

For Rei's cards, the goal is to maintain maximum Void card buffs through upgrades like Resonating Darkness's Void damage increase, Dark Condensation's 100% boost to a specific card, and Predator's Blade's Morale buff. Snack Time helps set up plays by drawing a specific Void card while exhausting others. Additionally, Strike of Darkness offers a valuable quality-of-life improvement by saving AP when using basic healing cards from Rei or Mika.

Mika's cards are all about AP and Wave generation while keeping the team afloat through extensive healing.

Kayron Best Partner

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

Partner	Details
Bria	Passive Effect: Capable Secretary - When the assigned combatant generates a card, attack card damage is increased by 10% for 1 turn. Stacks up to 3 times. When the assigned combatant generates a Status ailment card for first time, +25% attack card damage for 1 turn Ego Skill: Check the Instructions - From the Discard Pile, Exhaust all Status Ailment (including cards changed from Status Ailment) and Curse cards. For each card Exhausted, +10% Designated Combatants' Attack card Damage for 1 turn

Partner

Details

Bria

Passive Effect:
Capable Secretary - When the assigned combatant generates a card, attack card damage is increased by 10% for 1 turn. Stacks up to 3 times. When the assigned combatant generates a Status ailment card for first time, +25% attack card damage for 1 turn

Ego Skill:
Check the Instructions - From the Discard Pile, Exhaust all Status Ailment (including cards changed from Status Ailment) and Curse cards. For each card Exhausted, +10% Designated Combatants' Attack card Damage for 1 turn

Bria is the best partner for Kayron if for the AoE Burst. Her passive allows Kayron's Black Hole to deal even more damage based on the exhausted cards which is already the main mechanic of the build.

Alternative Budget Partner

Partner	Details
Eloise	Eloise is a great 4-star option for Kayron as she increases his damage whenever he Exhausts a Futility Card. Her Ego Skill, although it is not offensive, can save you in instances where you might receive fatal damage.
Zatera	Zatera is a good partner for Kayron as Fortune Telling; their Psionic synergy allows Kayron to gain a damage increase to his Attack cards. As a bonus, Kayron will be able to recover health if he is injured at the end of the battle.

Kayron Best Memory Fragment

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

The best set combination for this build is Offering of the Void (4-piece) and Black Wing (2-piece). You can trigger the Offering of the Void damage bonus very consistently, since Kayron's futility card always exhausts when used. For both main stats and substats, aim for Void Damage, Critical Chance, Critical Damage, and Attack.

Executioner's Tool Set as Alternative to Black Wing

If you want a higher damage ceiling, you can instead opt for the Executioner Set instead of the Black Wing to deal more damage on critical hits. However, we only recommend this set if you have sufficient Critical Chance to consistently take advantage of the Critical Damage increase, ideally maintaining approximately a 1:2 ratio between Critical Chance and Critical Damage.

We still highly recommend using the Offering of the Void and Black Wing combination initially, as it is more consistent and easier to farm.

Kayron Best Equipment

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

Weapon	Armor	Accessory
Void of the Devourer	Regenerative Ribcage	Heart of the Jewel

For Kayron's equipment, the most important piece is the Heart of the Jewel accessory, which enhances damage and Futility card creation through Echo of Futility. Void of the Devourer is also a very powerful offensive option, but you can settle for Dream of the Devoured as it provides the same effect, just with a lower multiplier. For your armor, Regenerative Ribcage offers the most consistent increase in survivability.

Kayron Build Tips and Playstyle

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Summary			Best Team			Best Cards			Best Partner
Memory Fragment				Equipment				Playstyle

Ideal Burst Playstyle

You Can Use Echo of Futility Without AP

Check The Graveyard Pile for Number of Exhausted Cards

Attack While Healing Through Futility Cards

Ideal Burst Setup

The ideal burst setup requires some luck and setup, but it can end combat encounters quickly when executed correctly. The ideal rotation is as follows:

Use Oath of Vanity to upgrade your Futility cards.
Use Rei's Resonating Darkness to increase the damage of your Void cards.
End your turn after casting one more card, but save your Echo of Futility for when you have more AP.
Use Echo of Futility or Echoes of True Abyss to create Futility cards.
Gradually use your Futility cards as often as you can. Alternatively, if available, use your Ego Skill to Exhaust all Futility cards created in your hand.
Take advantage of Rei's Dark Condensation and Predator's Blade buff.
Cast your upgraded Black Hole and Brand of Annahilation to dispose of enemies.

You Can Use Echo of Futility Without AP

Since Echo of Futility in this build has an X-Cost, you can use the card even at 0 AP, and it will still give you 1 Futility card. Combining this with the Heart of the Jewel accessory allows you to create 2 Futility cards at no AP cost, which is more efficient than needing to draw the card again.

Check The Graveyard Pile for Number of Exhausted Cards

Checking the Exhausted Card Pile
It is good to remember that you can check the Exhaust Pile and click on the burning card icon to see the number of Exhausted Futility cards since the start of battle. This will allow you to determine if you have Exhausted enough cards to trigger the additional hits of Black Hole.

Attack While Healing Through Futility Cards

One of the best features of Kayron is his ability to turn his Futility cards into both offensive and defensive tools. Try to acquire Oath of Vanity as early as possible during Chaos Manifestation runs, because this will significantly increase your chances of winning combat encounters.

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Kayron Best Team and Build

Best Kayron Build

Build Overview

Build Changelog

Kayron Best Team

Alternative Team Members

Kayron Best Cards

Essential Team Cards and Epiphanies

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Kayron Best Memory Fragment

Executioner's Tool Set as Alternative to Black Wing

Kayron Best Equipment

Kayron Build Tips and Playstyle

Ideal Burst Setup

You Can Use Echo of Futility Without AP

Check The Graveyard Pile for Number of Exhausted Cards

Attack While Healing Through Futility Cards

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