During the Chaos Zero Nightmare beta, several 5★ heroes stood out for their damage, support capabilities, and team synergy. However, since the developers confirmed that rebalancing is happening before full release, this Chaos Zero Nightmare Tier List focuses on how each hero feels to play, their core strengths, and their expected performance at launch.
Chaos Zero Nightmare Tier List
S-Tier Characters (Best Reroll Targets)
1. Kron – Dark/Void Psionic (S-Tier)
Role: AoE Nuker / Setup DPS
Playstyle: Exhaust synergy damage dealer
Reroll Priority: ★★★★★
Kron is the most well-rounded 5★ damage dealer in Chaos Zero Nightmare’s beta. His mechanic revolves around exhausting cards — removing them from play to empower later attacks. Once his setup is active, he can nuke entire waves with AoE damage that rivals or surpasses most other characters.
He scales harder with proper AP generation and synergizes perfectly with heroes that banish or exhaust cards (like Tresa or Orlia). Kron’s kit rewards understanding the game’s systems, but when optimized, he’s devastating both early and late game.
Strengths:
- Massive AoE potential
- Synergizes with exhaust mechanics
- Scales extremely well with setup
- Fun and interactive playstyle
Weaknesses:
- Requires AP management
- Some setup turns before peak damage
Verdict:
If you want a meta-defining reroll target, Kron is the top choice. His kit embodies Chaos Zero Nightmare’s core mechanics and scales excellently into endgame content.
2. Calipe – Light/Instinct Vanguard (S-Tier)
Role: Shielding Tank / AoE Support
Playstyle: Defensive vanguard that scales with DEF and shields allies
Reroll Priority: ★★★★★
Calipe dominated the beta. She was a defensive powerhouse who offered everything — AoE damage, tenacity breaks, shield generation, and AP efficiency through retrieve and retain card mechanics.
Although the devs plan to shift her toward more shielding and less damage, she’ll likely remain one of the strongest early-game units thanks to her survivability and utility.
Strengths:
- Generates strong shields for team
- AoE damage + tenacity breaking
- Excellent card economy (retrieve/retain tags)
- Easy early-game carry
Weaknesses:
- Slightly weaker vs. single-target bosses
- Upcoming balance changes may reduce her damage
Verdict:
Even post-adjustments, Calipe is one of the safest reroll targets for both new and veteran players due to her strong defensive utility and early carry potential.
3. Magna – Water/Justice Vanguard (S-Tier)
Role: Counter Tank / Defensive Support
Playstyle: Shields and counterattacks for sustained team protection
Reroll Priority: ★★★★☆
Magna’s kit focuses on shielding allies and counterattacking enemies. She accumulates Counterattack stacks which let her retaliate after being hit, even multiple times per attack sequence. Her synergy with AoE counters lets her contribute to both offense and defense simultaneously.
While Calipe overshadowed her during the beta, Magna may actually outperform her after balance adjustments if Calipe’s damage gets nerfed.
Strengths:
- Reliable shield generation
- Counter-based damage scaling
- Effective against multi-hit enemies
- Solid party sustain
Weaknesses:
- Slower setup
- Some redundancy with Calipe’s role
Verdict:
An ideal reroll if you prefer a defensive, sustain-oriented start. Excellent for long fights and roguelike runs.
A-Tier Characters (Strong Picks with Support Needs)
4. Ren – Dark/Void Striker (A-Tier)
Role: Hypercarry / Single-Target DPS
Playstyle: Selfish stance-based damage dealer
Reroll Priority: ★★★★☆
Ren revolves around maintaining her Dark Cloud stance, which activates when she’s the only one using attack cards. In this stance, her attacks gain massive multipliers, turning her into a hypercarry capable of deleting bosses.
However, she’s fragile in early game and team-restricted, since you must pair her with supports that don’t attack (like Orlia or Veronica).
Strengths:
- High single-target burst potential
- Late-game scaling monster
- Excels in boss fights
Weaknesses:
- Requires careful team-building
- Loses stance easily if teammates attack
Verdict:
Great reroll pick if you like pure damage characters and are patient enough to build her ideal support comp.
5. Mlin – Fire/Passion Striker (A-Tier)
Role: Tenacity Breaker / Single-Target DPS
Playstyle: Weakness-debuff focused attacker
Reroll Priority: ★★★★☆
Mlin is a simple yet effective damage dealer who applies and extends Weakness debuffs to amplify team damage by up to 25%. She’s efficient, with 0-cost cards that make her AP-friendly and help break tenacity shields fast.
Strengths:
- Great tenacity breaker
- Easy to play and consistent
- Provides team-wide damage amplification
Weaknesses:
- Limited AoE potential
- Lacks self-sustain
Verdict:
A consistent single-target DPS who fits easily into most teams — excellent for early rerolls if you value simplicity and reliability.
6. Veronica – Fire/Passion Ranger (A-Tier)
Role: Sub-DPS / Deck Cycler
Playstyle: Auto-attacking ballista user
Reroll Priority: ★★★★☆
Veronica is a low-AP cost sub-DPS who generates unplayable ballista cards that fire automatically at turn’s end. Her reload stacks increase extra attack power and enable passive AoE chip damage each round.
She’s excellent for cycling your deck and supporting AP-hungry main DPS units, as her damage triggers passively.
Strengths:
- Low AP requirement
- Passive end-of-turn damage
- Good for beginners
- Great synergy with Ren or Kron
Weaknesses:
- Requires setup
- Low direct impact early game
Verdict:
An underrated reroll pick for smooth, passive gameplay. Works especially well alongside hypercarries like Ren.
7. Hugo – Wind/Order Hunter (A-Tier)
Role: Sustained DPS / Extra Attacker
Playstyle: Gains stacks from allies’ non-attack cards
Reroll Priority: ★★★★☆
Hugo scales by stacking Hunt Commence, triggering extra attacks whenever single-target damage is dealt. His style rewards balanced team play — he’s more about sustained damage than big bursts.
Simple to play, easy to integrate, and effective in most team setups.
Strengths:
- Great consistency
- Sustained sub-DPS potential
- Works with most supports
Weaknesses:
- Lower burst than other DPS
- Requires team setup to trigger stacks
Verdict:
A flexible pick who fits into nearly any team comp, providing steady output without needing much micro-management.
B-Tier Characters (Niche or Synergy Dependent)
8. Renoa – Dark/Void Hunter (B-Tier)
Role: Ramp-Up DPS / Bullet Mechanic
Playstyle: Discards bullets to trigger extra attacks
Reroll Priority: ★★★☆☆
Renoa builds up bullet cards that, when discarded, trigger extra attacks. She shines in long fights but struggles in short encounters due to ramp-up time. Once setup, she can burst down bosses effectively.
Strengths:
- High late-game potential
- Excellent boss killer
- Retains built-up bullets after fights
Weaknesses:
- Slow start
- Requires managing card hand space
Verdict:
A solid pick for long fights but not ideal for quick early-game clears. Needs patience and synergy.
9. Orlia – Light/Instinct Controller (B-Tier)
Role: Summoner / Buffer
Playstyle: Creates and fuses summoned creatures for support buffs
Reroll Priority: ★★★☆☆
Orlia is a support character that fuses summoned creatures into higher rarities, each offering either team buffs or retained effects. She’s versatile but slow-paced, relying heavily on setup time and careful hand management.
Strengths:
- Unique fusion mechanic
- Flexible playstyle (buff or retain)
- Solid team amplification
Weaknesses:
- Clunky in short fights
- Hand management can limit allies
- Suffers hard from mental breaks
Verdict:
Interesting but not optimal for early reroll targets. Works best for players who enjoy slower, strategy-heavy playstyles.
C-Tier Character (Avoid for Reroll)
10. Luke – Wind/Order Striker (C-Tier)
Role: RNG Bullet DPS
Playstyle: Generates random bullets on crits
Reroll Priority: ★☆☆☆☆
Luke’s design mirrors Renoa’s bullet mechanic but adds RNG and crit dependency, making him unreliable in early game. Since most players can’t guarantee crits without gear or upgrades, he feels weak during the beta.
Strengths:
- Potentially scales with crit builds
- Can generate multiple bullets
Weaknesses:
- RNG-dependent
- Weak early game
- Limited synergy outside niche teams
Verdict:
Avoid rerolling for Luke. His kit feels incomplete, and his early-game performance was among the lowest during beta.
Best Reroll Choices Summary
| Priority | Character | Why |
|---|---|---|
| #1 | Kron | Top-tier AoE DPS, scales perfectly with game mechanics |
| #2 | Calipe | Strong tank-shielder with massive utility |
| #3 | Magna | Counter-based sustain and defensive consistency |
| #4 | Ren | Hypercarry potential for boss-focused players |
| #5 | Mlin | Efficient single-target DPS and debuff support |
Tier List Overview
| Tier | Role Type | Characters |
|---|---|---|
| S | Top-tier reroll targets with incredible performance in both early and late game | Kron, Calipe, Magna |
| A | Powerful but situational picks; strong once properly supported | Ren, Mlin, Veronica, Hugo |
| B | Solid mid-tier characters who fill useful roles but lack major impact | Renoa, Orlia |
| C | Underperformers or incomplete kits during beta; need buffs to compete | Luke |
If you’re rerolling in Chaos Zero Nightmare, aim for Kron or Calipe for the best overall experience.
They provide the strongest mix of power, flexibility, and long-term scaling, ensuring you don’t hit a wall early in the roguelike grind.