Memory Fragments Guide (Gear, Sub-stats & Sets)
How CZN's Memory Fragment gear works: six slots, main vs sub-stats, 2- and 4-piece set bonuses, and where to farm them (Simulation Lv25, Crafting Lv40).
Memory Fragments are Chaos Zero Nightmare's equippable gear — the main way to push a combatant's stats once your team is built. This guide covers the slots, stats, sets and farming.
The six slots
| Property | Detail |
|---|---|
| Slots per combatant | 6 |
| Main stats per fragment | 1 |
| Max sub-stats | 4 |
| Set matching | 2-piece & 4-piece bonuses |
Main stat vs sub-stats
| Main stat | Sub-stats | |
|---|---|---|
| Count | 1 | up to 4 |
| Set on drop? | Fixed when it drops | Rolled randomly |
| On enhance | Grows with level | Added / upgraded randomly, cannot be re-chosen |
| Rule | — | Never duplicates the main stat's type |
Exact sub-stat ranges for every rarity are published on the Memory Fragment Scorer — this guide covers the system.
Set bonuses
All 19 confirmed 2-piece and 4-piece set bonuses, cross-checked between two community sources (hub-czn and prydwen.gg):
| Set | Pieces | Effect |
|---|---|---|
 Conqueror's Aspect | 4 | 4-piece: cheap 1-cost cards hit 35% harder on a crit. |
 Tetra's Authority | 2 | 2-piece: a flat +12% boost to Defense. |
 Healer's Journey | 2 | 2-piece: a flat +12% boost to Max HP. |
 Black Wing | 2 | 2-piece: a flat +12% boost to Attack. |
 Seth's Scarab | 2 | 2-piece: Basic cards deal 20% more damage. |
 Executioner's Tool | 2 | 2-piece: a flat +25% boost to Crit Damage. |
 Instinctual Growth | 4 | 4-piece: once you've played 4 or more cards, Instinct damage rises 20%. |
 Bullet of Order | 4 | 4-piece: after an Attack card, Order damage rises 10%, stacking up to twice. |
 Offering of the Void | 4 | 4-piece: after an Exhaust effect, Void damage rises 20% for 1 turn. |
 Spark of Passion | 4 | 4-piece: after upgrading a card 5 times, Passion damage rises 20%. |
 Cursed Corpse | 2 | 2-piece: deal 10% more damage to enemies suffering Agony. |
 Line of Justice | 4 | 2-piece: a flat +17% boost to Attack. 4-piece: cards costing 2 or more gain +20% Crit Rate. |
| Wireth's Steel | 4 | 2-piece: a flat +20% boost to Defense. 4-piece: Counterattack damage rises 50%. |
 Orb of Inhibition | 4 | 4-piece: Void cards that hit 2 or more times deal 30% more damage. |
 Judgment's Flames | 4 | 4-piece: Instinct damage against Ravaged enemies rises 50%. |
 Beast's Yearning | 4 | 4-piece: Justice and Order Attack cards deal 30% more damage, capped at 5 stacks per turn. |
 Glory's Reign | 4 | 4-piece: creating or using an Exhaust Skill card adds +5% ally damage, up to +15%. |
 Prelude to a Hero | 4 | 4-piece: discarding a Passion or Void Attack card grants +15% Crit Chance for 1 turn (caps at 15%). |
 Starlight and Dreams | 4 | 4-piece: gaining Shield from an ability adds +5% ally Counterattack/Extra Attack damage, up to +25%. |
Mixing a 2-piece with another 2-piece, or committing to a full 4-piece, is the core of end-game tuning.
Where to farm
| Source | How it works |
|---|---|
| Simulation: Memory Fragments | Unlocks at Captain Level 25; 60 Aether per run; difficulty 1–10 |
| Crafting | Unlocks at Level 40; scrap 10 fragments for an exact piece/set, or 5 for a random one |
| Legendary (from Difficulty 5) | Drops with 3 sub-stats; enhance to +5 to unlock the 4th |
Higher difficulty means better fragments, so raise your team via the Combatants and tier list before farming hard.
FAQ
| Question | Answer |
|---|---|
| Can I re-roll a bad sub-stat? | No — sub-stats are locked once rolled, so keep fragments with two or more useful lines. |
| 2-piece + 2-piece or a full 4-piece? | Both are valid; the 4-piece gives the bigger single bonus, two 2-pieces give flexibility. |
| When should I start farming gear? | Once Simulation opens at Level 25 — before that, story progress rewards more. |