Chaos Zero Nightmare | Reroll Guide - Fast Rerolling and Best Units Tier List

Updated rerolling guide for Chaos Zero Nightmare (CZN). Includes how to reroll fast, 5 star best units to reroll, tier lists, how long is rerolling, and when to stop reroll in CZN.

Contents

Can You Reroll?
Rerolling Tier List
Best Banners for Rerolling
When to Stop Rerolling
Best Characters to Reroll
How to Reroll

Can You Reroll in CZN?

Reroll Possible but Not Recommended

Average Time to Reroll
Around 20 minutes
Number of Pulls per Reroll
6 pulls + 23 pulls on the Standard Gacha

While it's possible to reroll in CZN, we generally do not recommend it since each attempt takes a fairly long time.

Character Training is More Important

In CZN, a character's strength can vary greatly depending on the save data created through Chaos Manifestation. Even low-rarity characters can perform exceptionally well depending on the save data, so there's no need to force pulling for high-rarity characters.

Obtain 5-star Character in an Hour

In CZN, there is a beginner-exclusive Gacha where you are guaranteed to get a 5-star character after 50 pulls. Since you can get a 5-star character in about an hour of play, deciding after seeing the results is also an option.

200 Farmable Pulls

In CZN, you can pull from the gacha 200 times just by playing through the early stages. There is also a beginner gacha that guarantees a 5-star character after 50 pulls, so we recommend starting the game without worrying about your initial pulls.

Training is More Important Than Character Rarity

In CZN, the strength of the same character can change drastically depending on the Save Data created with Chaos Manifestation. Since even low-rarity characters can perform well depending on their Save Data, there is no need to force yourself to aim for high-rarity characters.

CZN Rerolling Tier List

Best Characters for Rerolling

Narja

Her strong early impact and long-term scalability position Narja as an ideal reroll choice. She provides excellent early power and versatility, combining healing, buffs, and damage through her Voracity mechanic.

Narja Guide Best Build and Kit

Seasonal Units Like Sereniel Are Ideal

As the first limited seasonal character with a unique ravage build and high Tenacity damage output, Sereniel easily earns SS-tier status this season, delivering unparalleled sustained damage and elite break performance in difficult content.

Sereniel Best Build and Kit

Mei Lin Is a Recommended Solid Attacker

Mei Lin is an easy-to-use attacker. With buffs that can be used at Initiation and card draw abilities, she is an ideal choice for players learning the game or looking for a dependable damage dealer.

Mei Lin Build

Khalipe Is Also a Good Choice

Khalipe is a Vanguard who excels at protecting allies with her Shield. In addition, she also has Attack Cards that are triggered by other Cards, and can be widely effective from the early game to high-difficulty content.

Khalipe Build

Unlockable Starter 4-Star Characters

Available in the Tutorial
Mika	Owen	Rei	Tressa
Pre-Registration Reward
Amir
Available from the Rookie Captain Mission
Beryl

Among the 4-star characters, the 5 mentioned above can be obtained from regular gameplay. Although Mika and Tressa have excellent performance for 4-star characters, we have given them a lower rating for rerolling purposes.

CZN Best Banners for Rerolling

Prioritize Season-Limited Characters

Season-limited characters like Sereniel will not be added to the Regular Gacha even after their availability period ends. Since it is unknown when they will be available again, you should prioritize pulling for them while they're available.

Combatant Rescue Rate Up

In the Combatant Rescue Rate Up banner, the drop rates for specific characters are increased, making it easier to get the character you want. We generally recommend rerolling on this banner.

Combatant Rescue Banners Are Not Time-Limited

In CZN, characters other than collaboration or seasonal limited ones will be added to the standard Combatant Rescue banner once their banner period ends. This means it's not absolutely necessary to get them during the banner period, so rerolling on the Combatant Rescue banner also becomes an option depending on the situation.

When to Stop Rerolling in CZN

Stop if You Pull an SS-Rank Character

If you decide to reroll, you should start playing through the game once you get one SS-rank character. In CZN, you only use 3 characters at a time, so having just one SS-rank character is enough to progress through the early game.

Best Characters to Reroll

SS Rank

Name	Evaluation
Mei Lin	- Can deal massive damage to Revaged enemies - High number of attacks and easy to use - High single-target damage output
Veronica	- Can deal damage with Extra Attacks - Can draw Cards from other Combatants - Can deal Piercing Damage to all enemies with their Ego Skill
Hugo	- Commence the Hunt is powerful - Can attack all enemies with their Ego Skill - Powerful Haste effect
セレニエル	・効果でホーミングレーザーを生成・大破時にホーミングレーザーを回収し大ダメージ・強靭度ダメージカードも所持

S Rank

Name	Evaluation
Renoa	- High number of attacks and easy to use - Can deal massive damage with their Ego Skill - Can deal damage with Dirge Bullet
Haru	- High damage output from Anchor Shot is its appeal - Also has Upgrade and search cards - Be aware of its high Cost
Nia	- Upgrades ally extra attacks - Also provides stable healing with Elasticity - Drawing and deck manipulation are also possible
Tressa	- Powerful damage over time from Agony - Easy to pair with high-cost characters - The end-of-turn damage is a slight drawback
Mika	- Excellent 0 Cost AP recovery - AP recovery is also possible through Wave - Abundant Heal Cards
Cassius	- Can increase hand cycling rate - Allows for building a team that is less prone to bricking - Has a slightly quirky performance
Rei	- Abundant buff Cards - Also has a 0-Cost draw Card - Low durability
Chizuru	- Attack enemies to obtain Will-O'-Wisp and create Shadow of the Moon (Attack Cards) - Works well with allies that can attack at a low cost - Can create Cards with an HP recovery effect