What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Chaos Zero Nightmare (CZN)

Rei Character Cards and Potential Materials

Add to Watchlist (2)

Chaos Zero Nightmare Rei Character Cards and Potential Materials
This is a guide for Rei, a 4 star combatant in Chaos Zero Nightmare (CZN). See Rei's overview, cards, Potential, Manifest Ego, and learn how to play Rei!

Rei Guides
Team and Build Cards and Materials

Rei Character Overview

Basic Information

Rei Rei Tier S Rank
Type
Controller Controller
Faction
Terrascion Terrascion
Rarity ★★★★
Attribute
Void Void

Character Stats

Attack 129
Defense 56
Health 74
Critical Chance 3%
Critical Damage 125%

The stats displayed represent the character's base level

Character Profile

Gender Female
Faction Terrascion
Race Human
Birthday April 5th
Gift Dark Material
Voice Actors
JP: Kaede Hondo
Description
A cheerful young agent. She is an enthusiastic and kind character with the ambition to protect everyone by her own strength. She is an enthusiastic and kind character with the ambition to protect everyone by her own strength. She is a Terrascion agent and also a student aboard the SS Edenity. She often makes quirky remarks or behaves in eccentric ways. She is a fan of a eccentric character brand called 'Coco'.

Rei Cards

Basic Cards

Dark Blade Dark Blade AP Cost: 1
Type: Attack Attack
Effect: 100% Damage
Tags:
N/A
Material Regeneration Material Regeneration AP Cost: 1
Type: Skill Skill
Effect: Heal 100%
Tags:
Heal

Epiphany Cards

Strike of Darkness Strike of Darkness AP Cost: 1
Type: Attack Attack
Effect: 100% Damage
For 1 turn(s), +100% Basic attack card Damage
Tags:
Lead
Resonating Darkness Resonating Darkness AP Cost: 1
Type: Upgrade Upgrade
Effect: +40% Damage of cards with cost 1
Tags:
Unique
Snack Time Snack Time AP Cost: 0
Type: Skill Skill
Effect: Select 1 card(s) from hand to Exhaust
Heal 200%
Draw 1
Tags:
Draw
Draw Pile
Exhaust
Heal
Dark Condensation Dark Condensation AP Cost: 1
Type: Skill Skill
Effect: Choose 1 Attack Card(s) in hand, +100% Damage for 1 turn
Tags:
N/A
Predator Predator's Blade AP Cost: 1
Type: Attack Attack
Effect: 250% Damage
For 1 turn 2 Morale
Tags:
Morale

All Card Epiphany Effects

Strike of DarknessStrike of Darkness Resonating DarknessResonating Darkness Snack TimeSnack Time Dark CondensationDark Condensation

Strike of Darkness Epiphanies

I II
AP Cost: 1
Type: Attack Attack
Tags: Lead
150% Damage
・For 1 turn(s), +150% Basic attack card damage
AP Cost: 1
Type: Attack Attack

350% Damage
For 1 turn, -20% Damage
III IV V
AP Cost: 1
Type: Attack Attack
Tags: Lead
150% Damage
Exhaust all Basic cards, +1 extra hit for each
AP Cost: 1
Type: Upgrade Upgrade
Tags: Unique
+80% Basic attack card Damage
AP Cost: 0
Type: Skill Skill
Tags: Retain
Activate all Basic cards in hand

Resonating Darkness Epiphanies

I II
AP Cost: 1
Type: Upgrade Upgrade
Tags: Unique
・+60% Damage of cards with cost 1
AP Cost: 1
Type: Upgrade Upgrade
Tags: Unique
・+40% Damage for Void Card
III IV V
AP Cost: 1
Type: Upgrade Upgrade
Tags: Unique
・+40% Shield Gain, Damage, and Healing of cards with cost 1
AP Cost: 1
Type: Upgrade Upgrade
Tags: Unique
・+40% Damage of cards with cost 1 or below
AP Cost: 0
Type: Skill Skill

For 1 turn, +80% Damage to cards with cost 1

Snack Time Epiphanies

I II
AP Cost: 0
Type: Skill Skill
Tags: Exhaust 2
・Select 1 card(s) from your hand to Exhaust
・Heal 200%
・Draw 1
AP Cost: 0
Type: Skill Skill
Tags: Retain, Exhaust
・Heal 200%
・Draw 2
III IV V
AP Cost: 0
Type: Skill Skill
Tags: Exhaust
・Heal 150%
・Select up to 2 card(s) from hand to Exhaust, then Draw that many
AP Cost: 0
Type: Skill Skill
Tags: Exhaust
・Heal 150%
From Draw Pile, select up to 1 card(s) to Exhaust, then Draw the same number of cards.
AP Cost: 0
Type: Skill Skill
Tags: Exhaust
・Heal 150%
・ Select 2 card(s) in hand to Exhaust
・Select 1 Void card(s) to Draw

Dark Condensation Epiphanies

I II
AP Cost: 1
Type: Skill Skill

・Choose 1 Attack Card(s) in hand, +150% Damage for 1 turn
AP Cost: 1
Type: Skill Skill

・Choose 1 card(s) in hand, +100% its Damage, Shield gain, and Healing for 1 turn
III IV V
AP Cost: 1
Type: Skill Skill

For 1 turn, +50% Damage to Void attack cards
AP Cost: 1
Type: Skill Skill

Select 1 Attack card(s), +100% Damage until used
AP Cost: 1
Type: Upgrade Upgrade

・Choose 1 Attack Card(s) from hand, +50% Damage

Rei Ego Skill

Ego Skill Effects EP Cost
Final Shadow Final Shadow 300% Damage
1 AP
4

Rei Potential

Potential Effects and Cost

# Upgrade Effect Cost
1 Epiphany Bonus Upon entering Chaos, you obtain 1 random Rare card through Epiphany. ・8x Common Growth Stone of the Void
・10000 Units
2 Upgrade Basic Cards Basic Card damage, shield gain, and healing amount +2% ・4x Common Growth Stone of the Void
・3000 Units
3 Upgrade Neutral Cards Neutral Card damage, shield gain, and healing amount +2% ・5x Great Growth Stone of the Void
・16000 Units
3-1 Basic Card Proficiency Add a 20% DMG-Based Recovery effect to Dark Blade Card. ・16x Great Growth Stone of the Void
・24000 Units
4 Upgrade Unique Cards Unique Card damage, shield gain, and healing amount +2% ・8x Great Growth Stone of the Void
・20000 Units
5 Health Proficiency Stamina increases by 1.6% ・16x Premium Growth Stone of the Void
・28000 Units
5-1 Basic Card Proficiency +5% Damage for Rei's Dark Blade. If Rei's Attack is greater than 500, an additional +5% to that value ・16x Premium Growth Stone of the Void
・2x Shards of Condemnation
・60000 Units
6 Attack Proficiency Increase Attack by 1.6% ・120x Premium Growth Stone of the Void
・42000 Units
7 Upgrade Unique Stats If Rei's Attack is greater than 550, +10% Predator's Blade Damage. For every 10 Attack exceeding that value, an additional +1% (up to an additional +20%) ・36x Premium Growth Stone of the Void
・2x Shards of Condemnation
・80000 Units

Rei Manifest Ego

Ego Manifestation Effects

# Manifest Ego Effect
1 Sleeping Memory The Predator's Blade card increases Morale by 2 for 1 turn
2 Awakening Memory Whe Rei uses a Attack Card, heal for 120%. This effect triggers only once per turn.
3 Vivid Memory Increase the level of Potential by +3 for [Upgrade Basic Cards], [Upgrade Neutral Cards], [Upgrade Unique Cards]
4 Inner Memory +100% Damage for Final Shadow
5 Complete Memory Increase the level of Potential by +3 for [Upgrade Basic Cards], [Upgrade Neutral Cards], [Upgrade Unique Cards]
6 Liberated Memory Allies' attack card damage is increased by +20%.

Each Manifest Ego will require one Memory Code - Rei and the Ego Manifestation from the previous stage.

How to Play Rei



Support Team with Damage Bonuses

Support Team with Damage Bonuses

The primary use of Rei's kit involves buffing Attack cards with more damage to clear waves and Bosses faster. Strike of Darkness enables 100% more Basic Attack card damage for a turn, while Dark Condensation will select an Attack card of your choosing to buff it with 100% more damage for a turn as well.

Predator's Blade allows Rei to grant the team the Morale buff, which provides 20% increased Attack for each stack. This can be useful for every DPS characters to further maximize their damage output if needed.

As a support damage buffer, make sure you focus on buffing your main DPS Attack cards so you can maximize the damage output of your team composition.

Exhaust Specific Cards

Snack Time is one of Rei's best cards as it triggers 3 effects for 0 AP cost. This allows her to Exhaust specific cards for better draw chances to target draw high-value cards, provide 100% Heals, and draw 1 card to further enable your actions within the turn.

Viable Void Sub-DPS Role

Since Rei has a few cards that can also deal good damage, she can also be viable as a sub-DPS for Void teams that want to capitalize on attribute weaknesses. Her Predator's Blade let's her deal 250% damage while also providing Morale, while Strike of Darkness also deals 100% damage and buffs your Basic Attack damage all for a measly 1 AP cost for each card.

With most of her cards being only 1 AP Cost, Resonating Darkness provides a 40% damage increase for any 1 AP cost cards which can prove effective for both Rei herself and any teammate that has the same AP cost cards.

Chaos Zero Nightmare (CZN) Related Guides

Characters Partial

List of All Characters

Character Lists by Category

By Rarity
★★★★★
5-Star
★★★★
4-Star
By Gender
Female Combatants Male Combatants
By Faction
TerrascionTerrascion IronrainIronrain Stella FamiliaStella Familia
PeltionPeltion Holy CrusadersThe Holy Crusaders Wanderer.pngWanderer
By Class
StrikerStriker HunterHunter VanguardVanguard
PsionicPsionic RangerRanger ControllerController
By Attribute
PassionPassion VoidVoid InstinctInstinct
OrderOrder JusticeJustice -

All Character Combatants

Wiki - NineNine Wiki - LukeLuke Wiki - YukiYuki
Wiki - TressaTressa Wiki - LucasLucas Wiki - RinRin
Wiki - HaruHaru Wiki - SelenaSelena Wiki - AmirAmir
Wiki - CassiusCassius Wiki - OrleaOrlea Wiki - HugoHugo
Wiki - Mei LinMei Lin Wiki - NarjaNarja Wiki - SerenielSereniel
Wiki - MaribellMaribell Wiki - KhalipeKhalipe Wiki - KayronKayron
Wiki - MikaMika Wiki - NiaNia Wiki - BerylBeryl
Wiki - OwenOwen Wiki - VeronicaVeronica Wiki - ReiRei
Wiki - MagnaMagna Wiki - ChizuruChizuru Wiki - RenoaRenoa

All Unreleased Combatants

Wiki - EuphinaEuphina Wiki - AdelheidAdelheid Wiki - TipheraTiphera

Author

    Please participate in our site
    improvement survey
    02/2026
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey

    Premium Articles

    All rights reserved

    Guide Index