The latest Chaos Zero Nightmare update introduces Diana, a ★5 DPS unit built around discard mechanics and Extra Attack combos, making her one of the most unique damage dealers in the current meta. Diana builds rely on card cycling and discard interactions to generate consistent damage. In this Diana build guide, we’ll cover the best Diana builds, optimal Diana card builds, Diana team comps, and clear pulling advice to help you decide if she’s worth investing in.

 

If you’re testing different setups or managing multiple accounts, OSLink can help streamline your progression. With multi-instance and automation features, you can run farming and Chaos content more efficiently, making it easier to refine Diana best builds and improve your overall performance without extra time investment.

Diana Overview

Instinct - Main DPS / Hybrid Damage Dealer

Diana is a dedicated damage dealer who excels as a main DPS rather than a support or utility unit. In most Diana builds, her role is to deal consistent single-target damage while scaling through discard mechanics and extra attack triggers.

 

What makes her stand out in Chaos Zero Nightmare is her ability to convert card cycling into sustained damage. With proper setup, Diana can chain multiple attacks in a single turn, making her one of the strongest combo-based DPS options available.

However, her performance depends heavily on build quality and execution. Without proper card flow and setup, her damage can drop significantly, especially in longer fights.

Core Mechanic

Diana’s gameplay revolves around three key systems: Heart Bullets, Resonance, and Discard interactions. Understanding how these mechanics work together is essential for building and playing her effectively.

• Resonance is applied to enemies and stores damage that is triggered whenever cards are discarded

• Discard effects activate additional attacks and bonus damage, forming the backbone of Diana’s combo playstyle

Heart Bullets

Heart Bullets are the core resource in all Diana builds. They are generated through her skills and exist in two forms: Heart Breaker and Heart Shaker.

Rather than being used like normal cards, Heart Bullets are most effective when discarded or triggered through effects, allowing Diana to generate free damage and chain multiple actions in a single turn.

Efficient Heart Bullet management is what separates average play from optimized Diana builds.

Heart Breaker

A core damage card that drives Diana’s combo engine.

 

• When used or discarded, it can trigger additional attacks

• Enables chain reactions by interacting with other discard effects

• Acts as a primary source of consistent damage in most Diana builds

Heart Breaker is the main tool for converting card flow into direct damage.

Heart Shaker

The primary source of Resonance application and scaling.

 

• Applies Resonance stacks to enemies

• Converts discard actions into additional damage through Resonance triggers

• Supports both single-target pressure and multi-target chip damage

Heart Shaker is essential for setting up Diana’s damage, allowing her to scale significantly over longer fights.

Together, these mechanics form the foundation of all Diana best builds. By generating Heart Bullets, stacking Resonance, and triggering discard effects, Diana can chain multiple Extra Attacks and maintain high damage output throughout a fight.

However, she has one key weakness: consistency. Diana relies heavily on proper sequencing, hand control, and setup. If her card flow is disrupted or key pieces are missing, her damage output drops significantly.

Because of this, strong team synergy and deck optimization are critical to getting the most out of her kit.

Diana Card Builds 

Diana’s deck revolves around maintaining a smooth discard → Extra Attack → Resonance loop powered by Heart Bullets. In the best Diana builds, the goal is to remove weak cards, retain key combo pieces, and upgrade the cards that enable consistent chaining.

 

A clean and optimized deck is essential. The more consistent your card flow is, the easier it becomes to trigger discard effects, stack Resonance, and maintain high damage output throughout long Chaos runs.

Basic Cards 

Keep Disruption Fire 

NA: Attack Response

After unlocking specific Potential upgrades, this card becomes a reliable way to trigger discard effects and support Diana’s core combo loop. It plays an important role in stabilizing Diana card builds and should be kept in most setups.

 

Remove Protect Me

NA: Defense Response

This card offers low damage value and has poor synergy with Diana’s discard-based playstyle. Keeping it in your deck slows down your rotations and increases the chance of dead draws. Removing it early is highly recommended, as it significantly improves deck consistency and allows your main combo pieces to appear more frequently.

 

Epiphany Cards & Priority Breakdown

Diana’s real strength comes from her Epiphany upgrades. These define how efficiently her build can cycle cards, trigger discard effects, and scale damage through Resonance.

With All My Heart! 

The main engine card for generating Heart Breakers and enabling Diana’s combo loop.

 

Epiphany Priority:
1 > 4 > 5 > 2 > 3

• (1): Best overall option. Generates the highest number of Heart Breakers and enables strong combo chaining

• (4): Extremely powerful in bullet-heavy builds, allowing more cards to benefit from discard effects

• (5): Provides consistent passive generation, making it strong in longer fights

• Other options are more situational and depend on specific team setups

C’mere, Milk & Pong!

Primary setup card for generating Heart Shakers and supporting Resonance-based builds.

 

Epiphany Priority:
2 > 4 > 1 > 5 > 3

• (2): Best option in most Diana builds. Provides strong discard synergy and improves overall combo consistency

• (4): A solid alternative that offers balanced value with minimal setup requirements

• (1): Situationally useful in teams focused on extra attack interactions

• Other variants are more niche and less consistent

Blooming Love 

A key utility card that enables discard effects while maintaining card flow.

 

Epiphany Priority:
1 > 2 > 5 > 4 > 3

• (1): Best option for discard-focused teams, especially when paired with other units that benefit from discards

• (2): A safe and consistent choice for most Diana builds

• (5): Provides strong long-term consistency by ensuring access to Quietus cards

• Other options are more situational and depend on specific build paths

Pistol of Purification

A flexible damage and Resonance trigger tool that can either generate or consume stacks depending on the build.

 

Epiphany Priority:
1 > 4 > 3 > 5 > 2

• (1): Best general option, offering both Resonance generation and activation

• (4): High burst potential in discard-heavy builds

• (3): Strong in Resonance-focused setups where you need to convert stacks into damage

• (5): Useful in AoE scenarios, especially in Chaos farming

• (2): More niche and requires specific setups to perform well

This card performs best when you already have high Resonance stacks on enemies, allowing you to convert them into immediate damage through discard triggers.

Potential Priority

Diana’s Potentials should be prioritized based on how much they improve her discard consistency, card flow, and overall damage scaling.

 

Priority Overview 

• 03-1 — Enables discard on NA: Attack Response (core mechanic)

• 07 — Increases total damage scaling based on Critical Chance

• 05-2 — Improves access to strong Epiphany upgrades

• 04 → 06 → 05 — Boost overall damage output and scaling

• 02, 03 — Basic card upgrades (low priority)

• 05-1 — Minor Disruption Fire enhancement (optional)

• 01 — Situational early-game value 

Neutral card Potentials can be safely deprioritized.

Partner Recommendations

In the Chaos Zero Nightmare Diana build, partners are very important because they directly improve her damage loop, card flow, and Extra Attack consistency. The right partner helps Diana trigger more discard effects, keep Heart Bullets flowing, and avoid bricking in long fights.

Exclusive Partner

Sophia 

Sophia is Diana’s best and most important partner. She is perfectly designed to work with Diana’s discard and Extra Attack playstyle, making her the strongest and most recommended choice in the Chaos Zero Nightmare Diana build.

 

• Increases Attack by 16%

• Gains Critical Damage when Quietus cards are discarded (stacking bonus)

• Triggers Extra Attacks after discarding Bullet cards

• Ego Skill provides:

  • Card draw + discard (improves consistency)

  • +40% Extra Attack damage for multiple turns

Overall, Sophia significantly boosts both Diana’s damage output and combo consistency, making her the ideal partner in most builds.

Alternatives Partners

Memory Fragment Setup

Memory Fragments are very important because they directly affect her burst damage, consistency, and scaling during fights. The goal is to maximize her rit-based damage while improving overall stability for long Chaos runs.

Set Recommendation

 

• 4× Executioner’s Tool

• 2× Black Wing

Executioner’s Tool is the best set for Diana because it greatly increases Crit Damage and burst potential. Black Wing complements this by boosting overall Attack and consistent damage output, making Diana stronger in both short bursts and longer fights.

Stat Priority

Main Stats

• Slot 4: Crit Rate

• Slot 5: ATK%

• Slot 6: ATK%

Team Compositions

Choosing the right setup is essential for maximizing Diana’s performance. The best Diana team comps focus on improving card flow, discard consistency, and Extra Attack uptime, allowing her to fully execute her combo-based playstyle.

Because Diana relies heavily on setup and synergy, strong teammates can significantly improve her damage output and overall consistency in longer fights.

1. Diana + RenoaSophia + Nia

This is a top-tier synergy team built around bullet generation, discard chaining, and Extra Attack scaling. It is one of the best Diana team comps for maximizing damage and combo potential.

This team creates a highly efficient combo engine where all units benefit from discard mechanics. Renoa and Diana amplify each other’s damage, while Nia ensures consistent card flow and setup. It is one of the strongest setups for Chaos runs and boss fights.

2. Diana + Renoa + Veronica

A more flexible setup focused on bullet generation and sustained pressure. This team offers strong tempo and reliable card cycling.

This composition is easier to manage compared to more synergy-heavy setups, making it a solid option for players who want consistent performance without relying on perfect card flow.

Pull Advice & Manifest Ego

From a role perspective, Diana is a high-skill, single-target DPS built around discard mechanics and Extra Attack scaling. In the best Diana builds, her damage comes from chaining multiple effects together rather than relying on simple burst skills.

 

She performs exceptionally well in boss fights and extended Chaos runs, where her ability to scale through Resonance and card cycling allows her to deal consistent and explosive damage over time.

However, Diana is not a plug-and-play unit. She requires proper setup, good deck management, and strong team synergy to reach her full potential.

Pull Advice:

• Pull if:

  • You want a high-damage single-target DPS

  • You enjoy combo-based or strategic gameplay

  • You need a strong boss killer for Chaos content

• Skip or consider later if:

  • You prefer simple or low-maintenance characters

  • You lack support units that enable discard or card cycling

  • You’re early in the game and need more general-purpose units

Manifest Ego

Diana functions well at base and does not require heavy investment to be effective. Additional Ego levels can improve her overall damage and consistency, but they are not mandatory for most content.

Conclusion 

Diana stands out as a high-skill DPS who rewards proper setup, clean card flow, and strong team synergy. With the right Diana build guide approach, optimized Diana card builds, and well-structured Diana team comps, she can deliver consistent high damage and perform exceptionally well in extended fights. If you enjoy combo-driven gameplay, she’s a strong unit worth investing in based on your pull. And if you want to speed up farming or test multiple setups more efficiently, OSLink helps you automate repetitive tasks and manage multiple accounts with ease, making it easier to optimize your builds and progress faster.