As the second limited character in Chaos Zero Nightmare, Heidemarie brings elegant swordplay and explosive damage. She stands out with her unique Link system and Effulgent Blade mechanics, rewarding smooth attack chains and smart card play. In this Chaos Zero Nightmare Heidemarie build guide, you’ll learn how to fully unlock her damage potential and dominate both single-target and AoE fights. 

 

Planning to pull Heidemarie for your Chaos Zero Nightmare teams? Then there’s an easier way to handle things, and that’s by using OSLink. Its Multi-Instance Manager lets you create and control multiple accounts with ease, helping you test Heidemarie best builds, compare progress, and improve your chances of obtaining her. It’s a useful tool if you want to try different setups and plan your ideal team without wasting time.

Heidemarie Overview

Attribute & Role

Passion — Hyper Carry DPS

Heidemarie is a discard-focused main damage dealer rather than a support or hybrid unit. Her kit is centered around scaling her own damage through deck manipulation, making her a pure hyper carry with minimal utility but extremely high burst potential.

Core Mechanic

Heidemarie’s gameplay is all about turning cards into power, then using that power for explosive finishers. Her kit mainly revolves around these mechanics:

 

Effulgent Blade: These are special attack cards she creates during battle. They deal good damage when used, but their real value comes when discarded. When sent to the graveyard, they deal extra damage.

Link Mechanic: This allows you to connect multiple cards together. When you play one linked card, the others automatically go to the graveyard. This makes chaining attacks fast and smooth. When combined with Quietus, which triggers extra effects when cards go to the graveyard, it creates strong continuous damage.

Ego Skill (Elysium of Blades): Her Ego Skill costs 5 EP and deals massive damage based on how many cards you’ve discarded. Effulgent Blades and Link chains help increase its damage, making it a powerful finishing move.

She performs best in long attack chains and can deal strong single-target and AoE damage. Her damage grows with proper setup, but Heidemarie heavily relies on discard synergy:

• Linked cards only provide value if they have Quietus or discard effects

• Effulgent Release scales based on Effulgent Blades generated during the fight

Discarding Linked cards without proper effects provides no benefit, meaning poor deck setup or sequencing can result in wasted value and reduced damage output. 

Heidemarie Card Builds

Basic Cards

 

Remove

NA: Sword Barrier
Low impact defensive card with no synergy. Recommended to delete first.

NA: Sword Flash
Provides minor Effulgent Blade damage, but overall low value. Recommended to remove for optimal deck cycling.

Epiphany Cards & Priority

Sword Rain

 

A core blade-generation card with strong synergy in most builds.

Epiphany Priority:

3 = 1 > 5 > 4 > 2

• Sword Rain(3): Extremely high ceiling with coordinated attackers; enables multi-hit burst setups

• Sword Rain(1): Free blade generation via attunement + Quietus; very efficient

• Sword Rain(5): AoE nuke option; useful in specific scenarios

• Others are lower value or require manual play with poor scaling

Hero to All

 

Utility/draw card with inconsistent value depending on epiphany.

Epiphany Priority:

4 = 3 > 5 > 1 > 2

• Hero to All(4): Zero-cost “joker” style card; strong flexibility and cycling

• Hero to All(3): Free draw + link application; good for deck cycling

• Hero to All(5): Niche use; can cause dead draws

• Others provide poor value or disrupt hand consistency

Thread of Light

 

Situational damage card depending on build type.

Epiphany Priority:

3 > 1 > 5 > 2 > 4

• Thread of Light(3): Only consistent option for standard builds

• Thread of Light(1): Decent scaling with linked cards

• Thread of Light(5): Strong in specific modes (AoE + discard synergy)

• Others are inefficient or too costly

Effulgent Expansion

 

Primary engine card for generating Effulgent Blades.

Epiphany Priority:

4 = 1 > 5 > 2 > 3

• Effulgent Expansion(4): Core of nuke build; massive blade generation in graveyard

• Effulgent Expansion(1): Strong blade generation + damage buff; very efficient

• Effulgent Expansion(5): Passive consistency option for longer fights

• Others have lower ceiling or require more setup

Effulgent Compression

Core mechanic card that converts into Effulgent Release (main nuke) after 3 discards.

• Cannot be modified by epiphanies

• Essential in all builds

• Scales damage based on Effulgent Blades in graveyard

Heidemarie Potential Priority

Potential upgrades make her basic and neutral cards stronger. 

Follow this order:

1. Epiphany Bonus (First upgrade): When entering Chaos, get 1 random Rare Card with activated Epiphany. Very strong for consistent runs.

2. Upgrade Basic Cards: +2% damage, shield, and heal on basic cards.

3. Upgrade Neutral Cards: +2% to common cards.

4. Then prioritise other potentials for Boosts damage, Crit Chance, and Crit Damage

Partner Recommendation

Exclusive Partner
Sylvia: 

Sylvia is Heidemarie’s personal secretary and story partner, released alongside her. She works very well with Heidemarie because she boosts Link effects, helps with card draw, and supports AP management.

Alternative Partners

Rosaria

Strong universal support option focused on Morale generation.

• Provides high Morale stacking, which benefits multi-hit and scaling builds

• Easy to obtain and highly consistent

Memory Fragment Setup

Heidemarie is a main DPS for the teams, so the best Heidemarie builds should focus on damage-oriented sets like:

Set Recommendation: 

• 4× Conqueror’s Aspect: This set greatly boosts the damage of 1 AP card, which fits Heidemarie perfectly since she uses many low-cost attack cards and Link chains.

• 2× Executioner’s Tool: Provides strong Critical Damage, helping her deal much higher burst damage.

Stat Priority

• Main Stats: ATK % (or Passion Damage), Crit Chance (very important since base crit rate is low)

• Substats Priority: Crit DMG > Passion Damage > ATK %

Heidemarie Team Compositions

Heidemarie works as a main DPS in most teams, so her teams should focus on setting up Links and discard support to let her deal continuous damage. Here are the best Heidemarie team comps from our Heidemarie build guide:

1. Heidemarie + Nia + Cassius / Rei

A stable and consistent discard-focused composition.

• Heidemarie acts as the main DPS using Effulgent Release scaling

• Nia provides consistent discard support and deck cycling

• Cassius improves card flow and consistency, while Rei offers additional utility

Best-performing and most reliable team

2. Heidemarie + Diana + Cassius / Nia

A thematic dual-discard composition with overlapping roles. 

• Heidemarie functions as the primary DPS with Effulgent scaling

• Diana contributes secondary damage through Quietus-based discard

• Nia enables discard consistency, while Cassius improves overall cycling 

Lower overall efficiency due to limited synergy between DPS units 

Pulling Advice for Heidemarie

Heidemarie is a limited seasonal character. Her banner (“Amplified Distress Signal: Heidemarie”) runs from April 29 to May 27, 2026. Sylvia is featured alongside her as the partner unit. So, should you pull Heidemarie?

 

• Yes, if you enjoy chaining DPS gameplay with strong scaling and discard mechanics. She is considered a meta choice with exciting and powerful gameplay.

• Limited units like her do not return often, so pulling now is the best chance if you want her.

• She is also a good pick for both new and experienced players who need a strong Passion DPS.

Conclusion 

That’s everything you need to know from our Chaos Zero Nightmare Heidemarie build guide. Build her using the best setups we covered, from optimized card choices to strong partners and memory fragments that maximize her damage potential. If you’re interested in pulling her, you can also use OSLink to test different setups and manage multiple accounts more efficiently, helping you enjoy smoother gameplay.