If you are just starting Chaos Zero Nightmare and wondering which combatants are worth investing in? This Chaos Zero Nightmare tier list ranks every unit by in-game performance, synergy, and consistency across modes like Dimensional Twilight, Chaos Manifestation, and Zero System. Whether you’re looking for the best combatant to reroll or optimizing your late-game lineup, this guide provides clear combatant recommendations.
Smart deck-building and stress management matter here, so even lower-tier units can shine with the right setup. For a smoother rerolling start, tools like OSLink help manage multiple accounts, sync progress, and find your ideal starting team faster, letting you focus on strategy instead of endless resets.
Chaos Zero Nightmare S+ Tier Combatants
These top-tier units define the current meta across all modes thanks to consistent scaling, strong synergy, and low reliance on RNG Epiphanies. To build a top-performing Chaos Zero Nightmare team, understanding how these units interact in decks and combos is key to creating efficient, high-performing setups.
| Combatant | Class / Attribute | Role Type | Why They’re in S+ Tier |
| Hugo
|
Ranger / Order | Main DPS | Incredibly consistent damage with passive scaling from Outbreak of War. Gains power as allies play spells/upgrades, brings draw, and hits hard without complicated setups. Fits into nearly any team. |
| Tressa
|
Psionic / Void | Support DPS | Free unit with huge value. Zero-cost daggers stack Agony and pair perfectly with Hugo, letting her serve as an early carry or a strong sub-DPS in late-game teams. |
| Veronica
|
Ranger / Passion | Support / Sub-DPS | Reliable draw engine + Ballista chip damage = constant tempo and card cycling. Great for speed and sustain teams, enabling smooth AP flow and combo consistency. |
| Mika
|
Support / Order | Healer / AP Battery | Top-tier sustain and AP generation. Massive healing, stress reduction, and tempo support make her a near-universal pick for high-difficulty content. |
| Khalipe
|
Vanguard / Instinct | AoE Bruiser / Shield Hybrid | Brings AoE damage and strong shielding in one kit. Celestial tag + scaling makes her excellent in Chaos and multi-enemy stages, especially with draw-focused comps. |
Chaos Zero Nightmare S Tier Combatants
For Chaos Zero Nightmare beginners, S-tier units offer top-tier performance across most content. They require some synergy and Epiphany investment, but once built, they reliably carry Chaos runs and late-game progression.
| Combatant | Class / Attribute | Role Type | Why They’re in S Tier |
| Mei Lin
|
Striker / Passion | Combo DPS / Universal Breaker | Huge combo chains, universal break, and low-AP loops with Epiphany support. Easy to use, scales into late game, and melts bosses with 20-hit bursts. |
| Renoa
|
Hunter / Void | Burst DPS / High Skill Ceiling | Multiple build paths (discard/banish/recycle) with high burst via Dirge Bullets. Very flexible and rewarding, but needs precise deck control and planning. |
| Haru
|
Striker / Justice | Burst Nuker / Anchor Specialist | Anchor Shot delivers some of the highest single-target burst in the game. AP-hungry and self-focused rotation keeps her just below S+, but insane for bosses. |
| Beryl
|
Vanguard / Order | Hybrid DPS / Retain Buffer | Retain-based scaling + self-sustain = strong long-fight DPS and support. Great draw synergy; slightly less consistent than Veronica but very rewarding. |
| Nia
|
Controller / Instinct | Support / Deck Manipulation | Enables discard loops and shuffle synergy teams (Renoa, Luke). Complex but incredibly powerful when mastered. |
| Cassius
|
Controller / Instinct | Support / Search Specialist | Quest system guarantees key cards when needed. Slight tempo loss for huge deck consistency payoff; amazing late-game support. |
| Magna
|
Vanguard / Justice | Tank / Counter DPS | DEF-scaling counter tank who shines in long fights and Chaos modes. Pairs great with Maribell for heavy shield stacking and punishing multi-target enemies. |
| Rei
|
Controller / Void | Support / Buffer | Boosts low-cost cards and burst setups (Rin, Haru). Excellent offensive support, though lighter on sustain/draw than Mika or Veronica. |
Tips: S-tier units often form synergy cores that outperform their raw stats when paired well. Examples: Mei Lin + Veronica + Mika for draw loops and universal break, Renoa + Nia + Cassius for discard scaling, and Haru + Rei + Mika for fast burst clears.
Chaos Zero Nightmare A Tier Combatants
Strong, reliable, and great for early Chaos and story clears. They shine with the right team/gear but don’t hit S-tier consistency or power.
| Combatant | Class / Attribute | Role Type | Why They’re in A Tier |
| Rin
|
Striker / Void | Combo DPS / Stance Fighter | High burst once her stance is stable. Great with proper Epiphany and sequencing, but early turns feel clunky and stance-breaks can hurt consistency in Chaos runs. |
| Kayron
|
Specialist / Void | Hybrid AoE DPS | Flexible damage dealer with solid scaling and a beginner-friendly kit. Strong generalist, though lacking standout burst or unique utility to break into top tiers. |
| Selena
|
Ranger / Passion | Break Specialist / Hybrid DPS | Excels at break-bar control and offers decent support. Great in break-centric fights, but damage outside break windows is modest. |
| Maribell
|
Vanguard / Passion | Tank / Shield Support | Reliable shielding + Weaken and counter value. Works very well with Magna and Mika. AP cost and lower damage cap keep her under S-tier. |
| Orlea
|
Controller / Instinct | Healer / Retain Support | Slow early, strong late. Creation summons give steady sustain and buffs in Retain comps (Cassius, Nia). Weak in fast modes like Dimensional Twilight. |
| Owen
|
Striker / Passion | Hybrid DPS / Support Bruiser | Provides Vulnerable uptime and Wind Charge burst windows. Solid hybrid pick, but needs good AP management and protection to shine. |
| Lucas
|
Hunter / Passion | AoE / Debuff DPS | Flexible crowd control with random debuffs (Weaken, Impair, Agony). Helpful mid-game utility, but AP inefficiency and RNG hold him back at high levels. |
Tips: A-tier units are great bridge picks for early–mid Chaos while you build toward top-meta carries. Rin helps you learn stance play, Maribell and Orlea cover sustain before Mika, and Kayron/Selena give reliable DPS as you refine deck and Epiphany setups.
Chaos Zero Nightmare B Tier Combatants
These units work and can shine in certain comps or modes, but they’re currently overshadowed by more reliable picks. Think of them as fun/experimental projects rather than efficiency-first choices.
| Combatant | Class / Attribute | Role Type | Why They’re in B Tier |
| Luke
|
Hunter / Order | Crit DPS / Discard Hybrid | Flashy but inconsistent. Needs crit gear + discard partners (like Nia) to function. Too RNG-dependent until late Blue Pot unlocks. |
| Amir
|
Vanguard / Order | Defensive Hybrid / Off-Tank | Solid damage reduction via Metallization, but weak without strong shielders (Khalipe, Maribell). Decent, just beaten by better tanks. |
Best Combatants to Reroll For in Chaos Zero Nightmare
Rerolling saves tons of grind time in Chaos Zero Nightmare. Starting with one strong carry (or a great duo) lets you breeze through early stages and scale fast into Chaos runs. Here’s the no-nonsense reroll priority:
Hugo – Main DPS: Top meta carry with smooth scaling and low card dependency. Works in almost any team and stays strong long-term.
Mika – Healer / AP Support: Best sustain + AP recovery in one unit. Makes early game runs way safer and smoother.
Tressa – Free DPS / Support: You get her free, but rerolling until you pair her with Hugo or Mika gives insane early power and synergy.
Khalipe – AoE Tank / Shield Hybrid: Early shields + AoE clears packs easily. Great pick for long-term Chaos content.
Veronica – Support / Draw Engine: Not mandatory but amazing if pulled early. Supercharges deck-based teams and pairs great with Hugo/Mei Lin.
Conclusion
That’s our Chaos Zero Nightmare tier list! While some combatants dominate the meta, any unit can shine with the right Epiphany builds and deck synergy. For fresh starts or rerolls, tools like OSLink let you manage multiple instances, sync progress, and secure top-tier combos like Hugo + Mika without repeating tutorials. Play smart, experiment, and enjoy crafting your ultimate Chaos team.
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