Diana, the newest 5-star Passion Hunter, has quickly become one of the most talked-about combatants in the Chaos Zero Nightmare tier list since her banner launch. Currently, she is the most favorite character among the players so what you need now is to learn her card loops, optimal epiphanies, memory fragments, equipment, and team setups as those can turn her discard engine into consistent high damage without bricking. So, here is your Chaos Zero Nightmare Diana build guide to learn these all so you will finally be able to take the maximum effort from her to your gameplay.

Diana is a 5-star Hunter-class combatant with the Passion attribute, affiliated with The Holy Crusaders faction. She is capable of generating Heart Breaker and Heart Shaker bullet cards, then discarding them to trigger massive extra attacks, resonance stacks, and Flutter accumulations that scale her damage over the turn.
Diana is good with prolonged fights where discard cycles create free actions and multiplicative damage spikes due to her kit. Unlike pure burst dealers, she rewards smart sequencing and support from discard enablers, making her a strong pick for players who enjoy combo-heavy gameplay. Right now, she slots comfortably into Tier 0.5–1 teams when properly geared, especially in discard-synergistic content.
Diana’s power comes from Quietus cards that activate both their normal effect and discard effect when removed from hand. Cards like With All My Heart! create Heart Breakers while granting Quietus to exhaust bullets, letting you chain plays without wasting resources.
Every discard of a bullet card triggers extra attacks on resonance-affected enemies and builds Flutter stacks. These stacks convert into end-of-turn extra damage that scales with your critical stats. The loop typically involves:
Nia’s discard support accelerates this cycle dramatically, turning Diana into a machine-gun style damage dealer.
For a best Chaos Zero Nightmare Diana build, focus exclusively on offensive rolls to maximize her extra attack and critical scaling. Her final potential node gives bonus extra damage for every 10% critical chance, so crit becomes the cornerstone stat.

Substats Priority: Critical Chance % > Critical Damage % > Extra Damage % > Attack
You better aim for 50%+ critical chance before heavy investment in other lines. Passion damage multipliers and extra damage directly amplify her bullet discards and Flutter bursts.
No 4-piece set perfectly suits Diana’s kit, so the best choice you can go for is a balanced 2/2/2 mix that stacks raw damage and critical multipliers:

Farm these in Chaos Zones that drop the respective fragments. This combination delivers the highest consistent output without sacrificing flexibility.
Gear choices emphasize attack, critical chance, and discard-triggered buffs for a working Chaos Zero Nightmare Diana build with the exact stats that fuel Diana’s engine. So, what works the best on her? These are your options:
Best Equipment Loadout:
Budget Alternatives:
Prioritize Swamp of Judgment as your favored Chaos Zone for farming her BiS pieces.
You can keep your deck lean by removing low-value basics like C’mere, Milk and Pong!, and Liberated Feelings. Then you can try to focus on these core cards to include:

Just make sure to prioritize epiphanies that enhance discard volume and Quietus uptime. Upgrade paths focus on bullet creation and resonance amplification.
So What are the best team comps for Diana to maximize her discard potential? Diana performs best with discard and draw support to keep her engine running smoothly.
Premium Team (Highest Damage): Diana + Renoa + Nia Renoa chains Dirge Bullets for additional discard damage, while Nia provides draws, healing, and extra attack triggers.
Strong Alternatives:
Best Partner: Sophia (Signature)
Budget Partner Options: Akad (bullet damage and crit buffs) or Yuri (multiplicative damage after shuffle + on-demand draw).
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Start every fight by playing With All My Heart! to seed Heart Breakers and Quietus. You can use Nia or partner discards to flood your hand with bullets, then chain Pistol of Purification and Blooming Love for explosive turns. Maintain resonance on targets so every discard procs free extra attacks.

Monitor Flutter stacks because they reset each turn but build massive end-of-turn damage when high. In longer fights, focus on hand refresh to avoid bloat. Practice sequencing in lower Chaos Zones before tackling high-level Tower floors.
With proper setup for a Chaos Zero Nightmare Diana build, she can output tens of thousands of damage per turn through cascading extras, making her excellent for both single-target and multi-wave content.
Yes, if you need a strong Passion Hunter for discard teams or already own Nia and Renoa. She offers excellent long-fight scaling and pairs well with existing bullet synergies, but skip if you lack discard support and prefer simpler burst dealers.
Diana focuses more on generating her own Heart Breakers and applying Quietus for dual-effect cards, while Renoa emphasizes Dirge Bullet chaining. Diana’s Flutter stacks add reliable end-turn damage that Renoa lacks, giving her better sustained output in extended battles.
Prioritize epiphanies that create multiple bullets immediately and pair her with Nia or Cassius for extra draws. Refine your deck by removing filler cards and farm Swamp of Judgment gear to hit critical thresholds faster.
And that is it from this Chaos Zero Nightmare Diana build guide. Diana rewards investment in her discard loop and shines brightest alongside Nia and bullet-focused teammates. Follow the stat, memory fragment, and equipment priorities above, and you’ll see her clear content reliably. And don’t forget to claim the best of rewards with Chaos Zero Nightmare codes as well.
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I’ve spent over 6 years exploring MMO, RPG, and Simulation games, breaking down complex mechanics to create guides that make gaming easier and more fun. I am a 24 year old computer science student who love studying computer systems, design patterns, and numerical planning in games as those are my field. Beyond that, I enjoy photography and cinematography in general. For me, sharing knowledge is as rewarding as playing itself
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