Table of Contents
- 1 Diana Overview in Chaos Zero Nightmare
- 2 How to Get Diana in Chaos Zero Nightmare
- 3 Best Team Compositions for Diana
- 4 Best Diana Build and Cards
- 5 Best Partner for Diana
- 6 Best Memory Fragments for Diana
- 7 Best Equipment for Diana in CZN
- 8 Diana Cards in Chaos Zero Nightmare
- 9 Ego Skill
- 10 Potential Upgrades
- 11 Manifest Ego
- 12 How to Play Diana in Chaos Zero Nightmare
Diana is a 5-star Hunter from Chaos Zero Nightmare. She uses the Passion attribute and belongs to The Holy Crusaders faction. She works as a main DPS character who generates Heartbreaker and Heart Shaker bullets through discard mechanics, enabling her to perform numerous free extra attacks each turn while supporting teammates through the Quietus keyword and Resonance debuff system.
Diana Overview in Chaos Zero Nightmare
 | Overview | ||
| Type | Hunter | ||
| Attribute | Passion | ||
| Faction | The Holy Crusaders | ||
| Rarity | ★★★★★ | ||
| Voice Actor (KR) | Voice Actor (JP) | ||
| - | Manaka Iwami | ||
| Gender | Race | Gift | Birthdate |
| Female | Human | - | February 18 |
Diana Stats
| Stat | Value |
|---|---|
| Attack | 170 (base) / 510 (level 60) |
| Defense | 45 (base) / 151 (level 60) |
| Health | 78 (base) / 393 (level 60) |
| Critical Chance | 3% |
| Critical Damage | 125% |
How to Get Diana in Chaos Zero Nightmare
Diana is available through the standard rescue banners in Chaos Zero Nightmare.
Best Team Compositions for Diana
Recommended Team Setup
| Position | Character |
|---|---|
| Main DPS | Diana |
| Support |  Nia |
| Support |  Cassius |
Diana functions as a main DPS who generates Heartbreaker and Heart Shaker bullets through discard mechanics, performing numerous free extra attacks each turn. Nia provides discard outlets through Adagio, card search through Curiosity, and massive burst damage potential through her Ego Skill which discards the entire deck, activating all Quietus cards for free. Cassius provides deck cycling through Shuffle epiphanies and hand management through discard effects that trigger Diana's Quietus cards.
Alternative Team Members
| Character | Explanation |
|---|---|
 Renoa | Best alternative main DPS |
 Luke | Provides additional bullet generation with Handgun Bullets that can be granted Quietus through Diana's With All My Heart IV, enabling free activations. |
 Lucas | AoE-focused bullet character whose bullets gain Quietus from Diana, providing strong AoE coverage when combined with Pistol of Purification V. |
 Hugo | Benefits from free Skill card spam |
Best Diana Build and Cards
Core Character Cards
| Card Name | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
 With All My Heart! | 1 | Attack | 100% Damage, Create 2 Heartbreaker | Quietus |
 C'mere, Milk and Pong! | 1 | Skill | Create 2 Heart Shaker | - |
 Pistol of Purification | 1 | Attack | 120% Damage, 2 Resonance, If this card is Discarded, activate Resonance inflicted on target 3 more times | Bullet, Quietus |
 Blooming Love | 1 | Skill | Draw 1 Quietus card, Discard 2 | - |
 Liberated Feelings | 2 | Attack | Draw 2 Exhaust Bullet cards, 300% Damage, Increase Damage Amount by 30% for each different Bullet card in hand | - |
Best Partner for Diana
Recommended Partner Choice
| Aspect | Details |
|---|---|
| Partner Name |  Sophia |
| Passive Effect | Assigned combatant's Attack +8% (16% at S5). When Passion Quietus card of assigned combatant is Discarded, +5% Critical Damage (max 4 stacks). When 3 Bullet cards are Discarded, assigned combatant performs 200% Extra Attack on random enemy (2 times per turn). |
| Ego Skill | 3 Die-hard Fan to assigned combatant. Draw 1. Discard up to 2 cards in hand. Die-hard Fan: +40% Damage Amount to Extra Attacks of assigned combatant. At end of turn, decrease Die-hard Fan by 1. |
Sophia is Diana's signature partner designed specifically for her kit. The Attack boost increases Diana's base damage while the Critical Damage stacks activate whenever Diana discards Passion Quietus cards (With All My Heart, Pistol of Purification), providing up to 20% Critical Damage. The Extra Attack trigger activates twice per turn when 3 Bullet cards are discarded, which happens frequently in Diana's discard-heavy gameplay. Sophia's Ego Skill provides card draw, discard outlets to trigger Quietus, and Die-hard Fan buff which grants 40% damage to Extra Attacks for 3 turns, amplifying Diana's numerous extra attack triggers from Heartbreaker, Heart Shaker, and Resonance.
Best Memory Fragments for Diana
Set Combination
| Set | Stats Priority |
|---|---|
| 2-piece: Black Wing Set | Critical Chance%, Critical Damage%, Attack, Attack% |
| 2-piece: Executioner's Tool Set | Critical Chance%, Critical Damage%, Attack, Attack% |
Best Equipment for Diana in CZN
| Equipment Slot | Recommended Item |
|---|---|
| Weapon | Intellect of Discord / Dagger that Tricked the Shadows |
| Armor | Fragment of the Empty Void |
| Accessory | - |
Diana Cards in Chaos Zero Nightmare
Basic Starting Cards
| Card Name | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
 Disruption Fire | 1 | Attack | 100% Damage | - |
 Protect Me | 1 | Skill | Heal 100% | - |
Unique Cards
| Card Name | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
With All My Heart! | 1 | Attack | 100% Damage, Create 2 Heartbreaker | Quietus |
C'mere, Milk and Pong! | 1 | Skill | Create 2 Heart Shaker | - |
Cards with Epiphanies
With All My Heart! Epiphanies:
| Epiphany | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
| I | 1 | Attack | 150% Damage, Create 3 Heartbreaker | Quietus |
| II | 1 | Attack | 150% Damage, Create 1 Heartbreaker, Draw 2 Exhaust Bullet cards | Quietus |
| III | 1 | Attack | 150% Damage, Change all 1-Cost or lower Exhaust cards in hand into Heartbreaker | Quietus |
| IV | 2 | Skill | Create 2 Heartbreaker, Apply Quietus to all Exhaust Bullet cards in hand | Quietus |
| V | 3 | Upgrade | At start of turn, create 2 Heartbreaker. If 5 or less Heart Bullets owned, create 1 more | Quietus |
C'mere, Milk and Pong! Epiphanies:
| Epiphany | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
| I | 1 | Skill | Create 2 Heart Shaker. For next 3 Extra Attacks by different Combatant, 1 Resonance to target | - |
| II | 1 | Skill | Discard up to 2 cards in hand, Create Heart Shaker for each Discarded +1 | - |
| III | 0 | Skill | Change 0-Cost Exhaust cards in hand into random Heart Bullets | - |
| IV | 1 | Skill | Create 1 of each Heart Bullet, 1 Resonance to random enemy for each different Bullet card in hand | - |
| V | 1 | Skill | Change Heart Shaker in hand into Heartbreaker. Retain: Create 1 Heart Shaker | Retain, Unique |
Pistol of Purification Epiphanies:
| Epiphany | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
| I | 1 | Attack | 180% Damage, 3 Resonance, If discarded, activate Resonance inflicted on target 5 more times | Bullet, Quietus |
| II | 1 | Attack | 180% Damage, For next 5 Haste Attack Cards used, 1 Resonance to target | Bullet, Quietus |
| III | 1 | Attack | 180% Damage, Activate Resonance inflicted on target 10 times | Quietus |
| IV | 1 | Attack | 180% Damage, +100% Damage Amount for each Bullet card Discarded this turn | Bullet, Quietus |
| V | 1 | Attack | 180% Damage to all enemies, When discarded, activate Resonance inflicted on all enemies 2 times | Bullet, Quietus |
Blooming Love Epiphanies:
| Epiphany | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
| I | 1 | Skill | Draw 1 Quietus card, Discard 1, If Discarded card was different Combatant's, create 2 Heart Bullet | - |
| II | 1 | Skill | Draw 1 Quietus card, Discard 2, 1 Resonance to all enemies for each combined Cost of Discarded cards (max 6) | - |
| III | 1 | Skill | Discard up to 3 Bullet cards in hand, Draw Quietus card for each Discarded -1 | - |
| IV | 1 | Skill | Discard all Bullet cards in hand, 80% Extra Attack to random enemy for each Discarded | - |
| V | 3 | Upgrade | If no Quietus cards of this unit in hand, Draw 1 Quietus card of this unit (1 time per turn) | Quietus, Unique |
Generated Cards
| Card Name | AP Cost | Type | Effect | Tags |
|---|---|---|---|---|
 Heartbreaker | 0 | Attack | 80% Damage, Discard 1 random Bullet card. If this card is Discarded, 120% Extra Attack to random enemy | Bullet, Exhaust, Haste |
 Heart Shaker | 0 | Skill | 1 Resonance, Discard 1 random card from Draw Pile. If this card is Discarded, 2 Resonance to random enemy | Bullet, Exhaust, Haste |
 Cupid Shot | 1 | Attack | 120% Damage, 60% Extra Attack to random enemy for each Bullet card in hand | Bullet, Quietus |
Ego Skill
| Aspect | Details |
|---|---|
| Skill Name |  Radiant Smile |
| Effect | Create 1 Cupid Shot. Create 2 Heart Bullet (randomly Heartbreaker or Heart Shaker). |
| EP Cost | 5 (becomes 4 with E3) |
Potential Upgrades
| # | Upgrade Name | Effect | Cost |
|---|---|---|---|
| 1 | Epiphany Bonus | Upon entering Chaos, obtain 1 random Rare card through Epiphany | 8x Common Growth Stone of Passion, 10,000 Units |
| 2 | Upgrade Basic Cards | Basic Card damage, shield gain, and healing amount +2% per level (max 20%) | 4x Common Growth Stone of Passion, 3,000 Units |
| 3 | Upgrade Neutral Cards | Neutral Card damage, shield gain, and healing amount +2% per level (max 20%) | 5x Great Growth Stone of Passion, 16,000 Units |
| 3-1 | Basic Card Proficiency | Add following effect to Disruption Fire card: Discard 1 random card of this unit | 16x Great Growth Stone of Passion, 24,000 Units |
| 4 | Upgrade Unique Cards | Unique Card damage, shield gain, and healing amount +2% per level (max 20%) | 8x Great Growth Stone of Passion, 20,000 Units |
| 5 | Critical Chance Proficiency | +2% Critical Chance per level (max 10%) | 16x Premium Growth Stone of Passion, 28,000 Units |
| 5-1 | Basic Card Proficiency | +5% Damage Amount to Diana's Disruption Fire. If Critical Chance > 20%, additional +5% | 16x Premium Growth Stone of Passion, 2x Shards of Condemnation, 60,000 Units |
| 6 | Critical Damage Proficiency | +2.4% Critical Damage per level (max 12%) | 120x Premium Growth Stone of Passion, 42,000 Units |
| 7 | Upgrade Unique Stats | If Critical Chance > 10%, +4% Extra Damage Amount. For every 5% Critical Chance above 10%, additional +1% (up to +8% total at 50% Crit) | 36x Premium Growth Stone of Passion, 2x Shards of Condemnation, 80,000 Units |
The most important potentials are 3-1 which adds discard effect to Disruption Fire (enabling Quietus activations), 4 (Upgrade Unique Cards) to maximize damage from Diana's core cards, 5 (Critical Chance Proficiency) and 6 (Critical Damage Proficiency) for critical damage scaling, and 7 which provides scaling Extra Damage based on Critical Chance. Potential 7 grants +4% Extra Damage at 10% Crit Chance, scaling up to +12% Extra Damage at 50% Crit Chance (4% base + 8% from 40% Crit above threshold = 12% total).
Manifest Ego
| Stage | Manifest Ego | Effect |
|---|---|---|
| 1 | Sleeping Memory | +100% Damage Amount to Liberated Feelings card, changes draw count of Exhaust Bullet cards to 3 |
| 2 | Awakening Memory | Each time ally Discards card, gain 2 Flutters. Flutters: At end of turn, 200% Extra Attack to target with highest max HP, increase Damage Amount by 10% per Flutters, then decrease all Flutters at start of turn (max 20 stacks) |
| 3 | Vivid Memory | Change Cost of Radiant Smile to 4, change creation count of Heart Bullets to 4 cards |
| 4 | Inner Memory | +30% Damage Amount to Diana's Extra Attacks. +1% Damage Amount to Diana's Extra Attacks per Flutters Diana owns |
| 5 | Complete Memory | Increase level of Potential by +3 for Upgrade Basic Cards, Upgrade Neutral Cards, Upgrade Unique Cards |
| 6 | Liberated Memory | Each time ally Discards card, gain additional 2 Flutters, increase max stack count to 30. Each time Flutters stacks to 30, allies inflict 200% Extra Damage to random enemy (1 time per turn) |
The most impactful Manifest Ego stages are E3, E4, and E6. E3 reduces Ego Skill cost from 5 to 4 EP and increases Heart Bullet generation to 4, enabling more frequent Ego Skill usage and more Bullet generation per activation. E4 provides permanent +30% Extra Attack damage plus scaling based on Flutters, dramatically amplifying Diana's numerous extra attack triggers. E6 doubles Flutters generation (4 per discard instead of 2), increases maximum to 30 stacks, and adds 200% Extra Damage proc when reaching 30 Flutters. At E6, Diana generates 4 Flutters per discard, meaning 8 discards reaches 30+ Flutters (providing +30% base + 30% from Flutters = +60% Extra Attack damage) plus the 200% Extra Damage proc.
How to Play Diana in Chaos Zero Nightmare
Diana's gameplay revolves around the Quietus and Resonance mechanics, two unique systems where discarding cards activates them for free (Quietus) and generates extra attacks (Resonance). Understanding how to generate Heartbreaker and Heart Shaker bullets, discard Quietus cards efficiently, manage Resonance stacks, and sequence card plays correctly is essential to playing her effectively. Unlike traditional DPS who play cards from hand using AP, Diana deals the majority of her damage through free card activations triggered by discard effects, creating explosive combo chains with minimal AP investment.
The core mechanic Quietus works as follows: Any card with the Quietus keyword that is discarded by a card effect activates for free, as if you played it from hand without paying its AP cost. The key restrictions are: Quietus cards do NOT trigger when discarded by passing your turn with too many cards in hand (only card effects trigger Quietus), and Quietus cards cannot be moved from the used pile during the turn they're activated, preventing infinite loops. This means you cannot discard With All My Heart, have it activate to create Heartbreakers, then somehow retrieve With All My Heart from used pile and discard it again the same turn.
Diana's Quietus cards are: With All My Heart (all epiphanies), Pistol of Purification (all epiphanies), Blooming Love V, Cupid Shot, and Blooming Love itself has "Draw 1 Quietus card" effect which searches for these. Additionally, Diana can grant Quietus to other cards: With All My Heart IV applies Quietus to all Exhaust Bullet cards in hand.
Heartbreaker and Heart Shaker are Diana's two bullet types with different functions. Heartbreaker is a 0 AP Attack (Bullet, Exhaust, Haste). When played manually from hand, it deals 80% Damage and discards 1 random Bullet card from hand. When Heartbreaker is discarded by any effect, it performs 120% Extra Attack to random enemy. The manual play effect can chain: If you play Heartbreaker from hand and it randomly discards another Heartbreaker, the discarded one triggers its 120% Extra Attack. If you have 5 Heartbreakers in hand and play one, it might discard a second (triggering 120% Extra Attack), that discard counts as discard effect, potentially chaining further.
Heart Shaker is a 0 AP Skill (Bullet, Exhaust, Haste). When played manually from hand, it applies 1 Resonance to an enemy and discards 1 random card from Draw Pile. When Heart Shaker is discarded by any effect, it applies 2 Resonance to random enemy. The "discard from Draw Pile" effect when manually playing Heart Shaker can hit Quietus cards in your deck, activating them for free without ever drawing them. This creates value: Play Heart Shaker → It discards With All My Heart from Draw Pile → With All My Heart activates via Quietus, creating 2 Heartbreakers and dealing damage.
Resonance is a debuff that stacks on enemies. Whenever any card is discarded by an effect (not by passing turn), each Resonance stack on that enemy triggers once, dealing 80% Extra Attack and removing 1 Resonance stack. For example: Enemy has 5 Resonance stacks. You discard 3 cards this turn (doesn't matter which cards). Each discard triggers 1 Resonance, so 3 discards = 3 Resonance triggers = 3 × 80% Extra Attacks = 240% total damage, leaving enemy with 2 Resonance remaining. Resonance allows you to deal free damage to secondary targets while focusing primary damage elsewhere, or to amplify single-target damage by stacking multiple Resonance before mass-discarding.
With All My Heart is Diana's primary Heartbreaker generator. At base, it costs 1 AP (Attack, Quietus), deals 100% Damage, creates 2 Heartbreakers. The optimal play pattern is NEVER manually playing this card for 1 AP. Always discard it via Blooming Love, Nia's Adagio, Cassius's Shuffle, or other discard effects to activate it for free via Quietus. When discarded, it deals damage and creates 2 Heartbreakers without AP cost.
With All My Heart Epiphany I increases damage to 150% and creates 3 Heartbreakers instead of 2. This is the most universally strong Epiphany and excellent duplication target.
With All My Heart Epiphany IV costs 2 AP but transforms into Skill type. It creates 2 Heartbreakers and applies Quietus to all Exhaust Bullet cards in hand. This is transformative when playing Diana with other bullet characters.
C'mere, Milk and Pong! generates Heart Shakers. Base version costs 1 AP (Skill), creates 2 Heart Shakers.
C'mere, Milk and Pong! Epiphany II costs 1 AP (Skill): "Discard up to 2 cards in hand, Create Heart Shaker for each Discarded +1." This is the best Epiphany for most builds. It provides discard outlet (triggering Quietus cards) while generating 1-3 Heart Shakers (0 discards = 1 Heart Shaker, 1 discard = 2 Heart Shakers, 2 discards = 3 Heart Shakers). Use this to discard With All My Heart and Pistol of Purification, activating them for free via Quietus while generating Heart Shakers that apply Resonance stacks.
Blooming Love is Diana's primary discard engine and Quietus card searcher. Base version costs 1 AP (Skill): "Draw 1 Quietus card, Discard 2." This guarantees drawing a Quietus card (With All My Heart, Pistol of Purification, Cupid Shot, or Blooming Love V if in deck), then forces you to discard 2 cards. The optimal sequence is: Play Blooming Love → It draws With All My Heart → Discard With All My Heart + another Quietus card → Both discarded cards activate via Quietus for free. You spent 1 AP, drew 1 card, and activated 2 cards for free.
Blooming Love is the best duplication target for most Diana builds because it provides card draw, discard outlets, and Quietus card access simultaneously.
Blooming Love Epiphany I costs 1 AP (Skill): "Draw 1 Quietus card, Discard 1. If Discarded card was different Combatant's, create 2 Heart Bullet." This works excellently with Renoa or other teammates. If you discard Renoa's Dirge Bullet, it activates (dealing 200% damage) AND creates 2 additional Heart Bullets (Heartbreaker or Heart Shaker). This is fantastic for multi-character bullet teams.
Diana's greatest strength is AP efficiency. She deals tonnes of damage per turn while spending only 3-5 AP (1 AP per Blooming Love, 1 AP per C'mere Milk and Pong, occasional 1 AP for manually playing Heartbreakers), with teammates spending their AP on buffs, healing, and discard effects. Her greatest weakness is setup dependency - she requires specific Epiphanies (With All My Heart I or IV, Blooming Love, C'mere Milk and Pong II) and teammates with discard mechanics (Nia, Cassius) to function optimally. Without discard outlets, Diana's Quietus cards sit in hand doing nothing.
Another weakness is Quietus card accessibility. If all Quietus cards are in used pile (can't be retrieved same turn) or haven't been drawn yet, Diana's damage drops significantly. Blooming Love's "Draw 1 Quietus card" effect mitigates this, but you still need Blooming Love in hand or draw pile. Additionally, Diana's damage is spread across many small instances (80-120% per Heartbreaker, 80% per Resonance trigger) rather than concentrated in one massive hit, making her less effective against enemies with damage reduction per-hit or enemies requiring burst damage checks.
Diana's skill ceiling is moderate to high. Perfect play requires tracking Quietus card locations (hand, draw pile, discard pile, used pile), sequencing discards correctly (discard With All My Heart before Pistol of Purification to generate Heartbreakers that can be discarded for more Resonance triggers), managing Resonance stacks (stacking high before triggering vs. triggering incrementally), timing Quietus application and hand space management.
