S1: Forbidden Catalyst | Nebula Distortion | The Great Rift
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Nebula Distortion is a boss fight event that is part of the Forbidden Catalyst seasonal content in Chaos Zero Nightmare (CZN). Learn more about the Nebula Distortion event, its mechanics, how to beat the bosses and release date here!
List of Contents
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Agony is a debuff that inflicts fixed amount of damage to enemies per stack. This will ignore beneficial buffs such as Morale or passive effects from allies but will penetrate through damage reduction from the enemies. It is highly advised to use characters that inflicts a lot of Agony to deal a lot of damage to the bosses.
Cards such as Wanderer of the Void or Rally are great tools that can delay enemy attacks and help you buy a few turns to before the enemy starts hitting hard.
Every Nebula Distortion bosses at max distortion will gain a massive damage boost after turn 6. Make sure to defeat the boss before you reach that point of the fight.
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Aqua balls summoned by Kentris gives it 3 Morale per ball when it is present in the field. It can also provide shields to all enemies but it is best to ignore it because you want to finish the fight before it hits turn 6.
Kentris can only summon 3 aqua balls maximum. When Kentris uses a skill that summons more aqua balls when there is already 3 present in the field, it will not do anything essentially giving you a free turn.
If you are aiming for 9/9 Kentris, distortion 2 reduces shield gain per stack. Characters such as Magna or Khalipe will be heavily nerfed in this boss fight, avoid bringing them in this fight.
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Attacks that explicitly states that it will hit more than 1 will count as separate attacks even if it only came from one attack card. Make use of these cards first to shred Family Head's buffs in one attack.
Counterattack, Mark and Extra attacks such as Nia's decibel, Renoa's dirge bullets, Magna and Maribell's counterattacks and Selena's mark will not reduce Hunger stacks from Family Head.
Family Head has quite a handful of multi hit attacks that can be reduced significantly by stacking a lot of Fortitude because it subtracts a flat percentage damage amount from enemy attacks based on stacks.
| Core Team Cards and Epiphanies | ||||
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Shadow Reload 4
AP Cost: 1 Type: Tags: Initiation・When Healed by a Skill Card, create 1 Shadow Dagger
Duplication Priority: Shadow Reload > Unsheathe Dagger > Curse |
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Shuffle 4
AP Cost: 0 Type: Tags: Exhaust・Select up to 5 cards from Discard to place on top of Draw Pile
Duplication Priority: Devil Dice > Dice Trick > Shuffle
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Blessing of Waves 2
AP Cost: 1 Type: Tags: Retain・Heal 150% ・+30% Healing equal to number of AP ・1 Wave
Whirlpool 2
AP Cost: 1 Type: ・200% Damage to all enemies ・Gain 1 Wave equal to number of targets hit Duplication Priority: Source of Water > Tactical Analysis
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※ Hover over cards to see card effects.
The gameplan for this team is to inflict as much Agony as possible so Tressa's deck should have at least one Shadow Reload but more copies will make the fight easier. She also needs the Vital Attack epiphany that scales off of Agony stacks and Curse should have the 2 turn epiphany.
Cassius' deck must have the Pop Eyed Popper the epiphany that lets you choose what quest you want. Dice Trick with the quest completion epiphany or multiple copies of the 0-cost Devil Dice will make card cycling consistent. Mika should have cheap healing cards and her deck should be thin enough to cycle through it easily.
Once everything is good, every turn for this team usually goes like this:
| Distortion | Effect | How to Unlock |
|---|---|---|
| 1 | Increase Tenacity of Boss Monster by 50% | Default |
| 2 | (Kentris) At the start of the turn, 1 Impair (Family Head) At the start of the turn, 1 Weaken to all combatants |
Default |
| 3 | For Boss Monsters, increase HP by 10%, decrease Damage taken by 5%, increase Damage dealt by 5% | Default |
| 4 | (Kentris) Decrease Damage that targets all enemies by 20% (Family Head) Decrease Action Count by 3 |
Defeat Boss with 3 Distortion |
| 5 | (Kentris)At the start of the turn, create 1 Contamination Card(s) to the Draw Pile (Family Head) At the start of the turn, 2 Boss Monster Thirst |
Defeat Boss with 3 Distortion |
| 6 | For Boss Monsters, increase HP by 25%, decrease Damage taken by 15%, increase Damage dealt by 15% | Defeat Boss with 3 Distortion |
| 7 | Decrease Turn Draw by 1 | Defeat Boss with 6 Distortion |
| 8 | After 6 turn(s), monster Damage greatly increases | Defeat Boss with 6 Distortion |
| 9 | For Boss Monsters, increase HP by 50%, decrease Damage taken by 20%, increase Damage dealt by 20% | Defeat Boss with 6 Distortion |
The Nebula Distortion event is a boss-fighting event that is part of the seasonal Forbidden Catalyst update in Chaos Zero Nightmare. In this event, you take on bosses while stacking modifiers called Distortions. These Distortions make the fight more difficult, so test your team's limits for greater rewards!
Strategic deck building will be essential for this event, so build your team the best you can to stack more Distortions and earn more rewards!
| Boss | Chaos Area | Release Date |
|---|---|---|
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The Blue Pot | November 12, 2025 |
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City of Mist | November 26, 2025 |
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December 10, 2025 |
The first boss has been confirmed to be Kentris from the Blue Pot, followed by Family Head and Sweet Dream from the City of Mist over the span of 4 weeks.
The core mechanics of the bosses themselves will remain unchanged, but the Distortions you add may buff certain parts of their kit and make them stronger.
| Objective | Rewards |
|---|---|
| Clear Boss |
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| Distortion 1 |
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| Distortion 2 |
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| Distortion 3 |
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| Distortion 4 |
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| Distortion 5 |
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| Distortion 6 |
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| Distortion 7 | |
| Distortion 8 | |
| Distortion 9 | |
| Beat Boss under 15 turns |
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※ The rewards are the same for all difficulty level.
Alongside the first time clear for each distortion stack, if you beat the highest difficulty for each boss, you will automatically receive all the previous rewards from lower difficulties too.

Nebula Distortion only accepts save data from the seasonal chaos area, Laboratory 0. Save data without the symbol present on it is unusable in this game mode.

Nebula Distortion was released on November 12, 2025, along with the seasonal Forbidden Catalyst event.

| Season 1: Forbidden Catalyst | |
|---|---|
| The Great Rift Guide | Nebula Distortion Guide |
| Supply Store Items | Laboratory 0 Guide |
| How to Reach Laboratory 0's Secret Boss | - |
Nebula Distortion Guide



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