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 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.
▼Click here to learn how to rerollCZN Rerolling Tier List
Best Characters for Rerolling
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 KitMei 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 BuildKhalipe 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 is effective across a wide range of content, from the early game to high-difficulty quests.
Khalipe BuildUnlockable 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 six 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 season-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 standard banner is also 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 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 |
Sereniel | - Creates a homing laser with its effect. - Upon Ravage, retrieves the homing laser and deals massive damage. - Also has toughness damage cards. |
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 |
Narja | - A rare 5-star healer - Also contributes to damage with a damage buff - Can also reduce Card Cost |
Nine | - A damage-focused Vanguard - Upgrades by Exhausting their own Cards - Difficult to use |
How to Reroll in CZN
Summary of Time and Number of Pulls
| Time Required | Approx. 20 min |
|---|---|
| Number of Pulls | Total: 29 pulls - 6 pulls with Crystals - 23 pulls on the Standard Gacha with free items |
How to Reroll
- Progress the story to Chapter 1, #3
- Claim the distributed items
- Pull from the gacha
- Progress the story to get a 5-star character
- Finish pulling on the Beginner Gacha
- If you want to reroll, reinstall the app
Chaos Zero Nightmare Related Guides
