Memory Fragment Upgrade Probabilities(11/12 Edited)
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Chaos Zero Nightmare displays probabilities after rounding decimal values.
Therefore, the total probability displayed may be slightly above or below 100%
* Information as of November 12, 2025.
■ Memory Fragment Main Option Probabilities
- Each Memory Fragment has different main options depending on its part. The table below shows the probability of each main option by part.
- Main option probabilities are not affected by the Memory Fragment’s grade (Uncommon, Rare, or Legendary).
Memory Fragment Equipment Part | Main Options | Probability |
Shock | Attack + | 100.00000% |
Suppression | Defense + | 100.00000% |
Denial | Health + | 100.00000% |
Ideal | Attack % | 25.00000% |
Health % | 25.00000% | |
Critical Chance % | 25.00000% | |
Critical Damage % | 25.00000% | |
Desire | Attack % | 14.28571% |
Health % | 14.28571% | |
Passion Damage % | 14.28571% | |
Justice Damage % | 14.28571% | |
Order Damage % | 14.28571% | |
Void Damage % | 14.28571% | |
Instinct Damage % | 14.28571% | |
Imagination | Attack % | 25.00000% |
Defense % | 25.00000% | |
Health % | 25.00000% | |
Ego Recovery | 25.00000% |
■ Memory Fragment Main Options Upgrade Values and Probabilities
- Each grade affects a Memory Fragment’s main option—its base value, max level, and upgrade increments.
Memory Fragment Grade | Max Upgrade |
Uncommon | 3 |
Rare | 4 |
Legendary | 5 |
Grade | Uncommon | ||||
Memory Fragment Equipment Part | Main Option Type | Upgrade +0 | Upgrade +1 | Upgrade +2 | Upgrade +3 |
Shock | Attack + | 8 | 9 | 11 | 12 |
Suppression | Defense + | 8 | 9 | 11 | 12 |
Denial | Health + | 13 | 15 | 17 | 20 |
Ideal | Attack % | 2.5% | 4.5% | 6.5% | 8.5% |
Health % | 2.5% | 4.5% | 6.5% | 8.5% | |
Critical Chance % | 1.5% | 3.0% | 4.5% | 6.0% | |
Critical Damage % | 2.3% | 4.6% | 6.9% | 9.2% | |
Desire | Attack % | 2.5% | 4.5% | 6.5% | 8.5% |
Health % | 2.5% | 4.5% | 6.5% | 8.5% | |
Passion Damage % | 1.7% | 2.3% | 2.9% | 3.5% | |
Justice Damage % | 1.7% | 2.3% | 2.9% | 3.5% | |
Order Damage % | 1.7% | 2.3% | 2.9% | 3.5% | |
Void Damage % | 1.7% | 2.3% | 2.9% | 3.5% | |
Instinct Damage % | 1.7% | 2.3% | 2.9% | 3.5% | |
Imagination | Attack % | 2.5% | 4.5% | 6.5% | 8.5% |
Defense % | 2.5% | 4.5% | 6.5% | 8.5% | |
Health % | 2.5% | 4.5% | 6.5% | 8.5% | |
Ego Recovery | 4 | 7 | 10 | 13 | |
Grade | Rare | |||||
Memory Fragment Equipment Part | Main Option Type | Upgrade +0 | Upgrade +1 | Upgrade +2 | Upgrade +3 | Upgrade +4 |
Shock | Attack + | 10 | 12 | 13 | 15 | 17 |
Suppression | Defense + | 10 | 12 | 13 | 15 | 17 |
Denial | Health + | 17 | 20 | 23 | 25 | 28 |
Ideal | Attack % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% |
Health % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% | |
Critical Chance % | 3.0% | 6.0% | 9.0% | 12.0% | 15.0% | |
Critical Damage % | 4.5% | 9.0% | 13.5% | 18.0% | 22.5% | |
Desire | Attack % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% |
Health % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% | |
Passion Damage % | 3.3% | 4.7% | 6.1% | 7.5% | 8.9% | |
Justice Damage % | 3.3% | 4.7% | 6.1% | 7.5% | 8.9% | |
Order Damage % | 3.3% | 4.7% | 6.1% | 7.5% | 8.9% | |
Void Damage % | 3.3% | 4.7% | 6.1% | 7.5% | 8.9% | |
Instinct Damage % | 3.3% | 4.7% | 6.1% | 7.5% | 8.9% | |
Imagination | Attack % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% |
Defense % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% | |
Health % | 5.0% | 8.0% | 11.0% | 14.0% | 17.0% | |
Ego Recovery | 8 | 11 | 14 | 17 | 20 | |
Grade | Legendary | ||||||
Memory Fragment Equipment Part | Main Option Type | Upgrade +0 | Upgrade +1 | Upgrade +2 | Upgrade +3 | Upgrade +4 | Upgrade +5 |
Shock | Attack + | 12 | 14 | 16 | 18 | 20 | 22 |
Suppression | Defense + | 12 | 14 | 16 | 18 | 20 | 22 |
Denial | Health + | 20 | 23 | 27 | 30 | 33 | 37 |
Ideal | Attack % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% |
Health % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% | |
Critical Chance % | 4.5% | 9.0% | 13.5% | 18.0% | 22.5% | 27.0% | |
Critical Damage % | 6.8% | 13.6% | 20.4% | 27.2% | 34.0% | 40.8% | |
Desire | Attack % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% |
Health % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% | |
Passion Damage % | 5.0% | 7.2% | 9.4% | 11.6% | 13.8% | 16.0% | |
Justice Damage % | 5.0% | 7.2% | 9.4% | 11.6% | 13.8% | 16.0% | |
Order Damage % | 5.0% | 7.2% | 9.4% | 11.6% | 13.8% | 16.0% | |
Void Damage % | 5.0% | 7.2% | 9.4% | 11.6% | 13.8% | 16.0% | |
Instinct Damage % | 5.0% | 7.2% | 9.4% | 11.6% | 13.8% | 16.0% | |
Imagination | Attack % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% |
Defense % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% | |
Health % | 7.5% | 11.0% | 14.5% | 18.0% | 21.5% | 25.0% | |
Ego Recovery | 10 | 16 | 22 | 28 | 34 | 40 | |
■ Memory Fragment Sub Option Probabilities
- Memory Fragment sub options are determined by its grade and upgrade level.
- One additional sub option is added each time the upgrade level increases by 1.
- A Memory Fragment can have up to 4 sub options.
Memory Fragment Grade | Initial Sub Options Owned |
Uncommon | 1 |
Rare | 2 |
Legendary | 3 |
- Applicable Sub Options
ㆍ The same sub option cannot apply more than once on a Memory Fragment, and sub options cannot duplicate the main option.
ㆍ Since main and sub options cannot overlap, the adjusted probability is calculated as: Displayed Probability/(100% – Sum of excluded sub option probabilities)
Sub Option Type | Probability |
Attack + | 10.63830% |
Defense + | 10.63830% |
Health + | 10.63830% |
Attack % | 9.57447% |
Defense % | 9.57447% |
Health % | 9.57447% |
Critical Chance % | 7.44681% |
Critical Damage % | 7.44681% |
Ego Recovery | 7.44681% |
Extra Damage % | 8.51064% |
Damage over Time % | 8.51064% |
■ Memory Fragment Sub Options Application and Upgrade Probabilities by Grade
- Memory Fragment sub options vary depending on its grade.
- If a Memory Fragment already has 4 sub options, one of the existing ones will be upgraded instead.
- Sub options and upgrades are determined by the probabilities listed below.
[ Attack + ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
3 | 25.00000% | 4 | 25.00000% | 5 | 25.00000% |
4 | 25.00000% | 5 | 25.00000% | 6 | 25.00000% |
5 | 25.00000% | 6 | 25.00000% | 7 | 25.00000% |
6 | 25.00000% | 7 | 25.00000% | 8 | 25.00000% |
[ Defense + ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
2 | 50.00000% | 2 | 33.33333% | 3 | 33.33333% |
3 | 50.00000% | 3 | 33.33333% | 4 | 33.33333% |
4 | 33.33333% | 5 | 33.33333% | ||
[ Health + ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
6 | 33.33333% | 8 | 33.33333% | 10 | 33.33333% |
7 | 33.33333% | 9 | 33.33333% | 11 | 33.33333% |
8 | 33.33333% | 10 | 33.33333% | 12 | 33.33333% |
[ Attack % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.2% | 25.00000% | 0.5% | 25.00000% | 0.8% | 16.66667% |
0.3% | 25.00000% | 0.6% | 25.00000% | 0.9% | 16.66667% |
0.4% | 25.00000% | 0.7% | 25.00000% | 1.0% | 16.66667% |
0.5% | 25.00000% | 0.8% | 25.00000% | 1.1% | 16.66667% |
1.2% | 16.66667% | ||||
1.3% | 16.66667% | ||||
[ Defense % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.2% | 25.00000% | 0.5% | 25.00000% | 0.8% | 16.66667% |
0.3% | 25.00000% | 0.6% | 25.00000% | 0.9% | 16.66667% |
0.4% | 25.00000% | 0.7% | 25.00000% | 1.0% | 16.66667% |
0.5% | 25.00000% | 0.8% | 25.00000% | 1.1% | 16.66667% |
1.2% | 16.66667% | ||||
1.3% | 16.66667% | ||||
[ Health % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.2% | 25.00000% | 0.5% | 25.00000% | 0.8% | 16.66667% |
0.3% | 25.00000% | 0.6% | 25.00000% | 0.9% | 16.66667% |
0.4% | 25.00000% | 0.7% | 25.00000% | 1.0% | 16.66667% |
0.5% | 25.00000% | 0.8% | 25.00000% | 1.1% | 16.66667% |
1.2% | 16.66667% | ||||
1.3% | 16.66667% | ||||
[ Critical Chance % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.3% | 20.00000% | 0.7% | 11.11111% | 1.2% | 11.11111% |
0.4% | 20.00000% | 0.8% | 11.11111% | 1.3% | 11.11111% |
0.5% | 20.00000% | 0.9% | 11.11111% | 1.4% | 11.11111% |
0.6% | 20.00000% | 1.0% | 11.11111% | 1.5% | 11.11111% |
0.7% | 20.00000% | 1.1% | 11.11111% | 1.6% | 11.11111% |
1.2% | 11.11111% | 1.7% | 11.11111% | ||
1.3% | 11.11111% | 1.8% | 11.11111% | ||
1.4% | 11.11111% | 1.9% | 11.11111% | ||
1.5% | 11.11111% | 2.0% | 11.11111% | ||
[ Critical Damage % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.7% | 12.50000% | 1.3% | 5.88235% | 2.4% | 5.88235% |
0.8% | 12.50000% | 1.4% | 5.88235% | 2.5% | 5.88235% |
0.9% | 12.50000% | 1.5% | 5.88235% | 2.6% | 5.88235% |
1.0% | 12.50000% | 1.6% | 5.88235% | 2.7% | 5.88235% |
1.1% | 12.50000% | 1.7% | 5.88235% | 2.8% | 5.88235% |
1.2% | 12.50000% | 1.8% | 5.88235% | 2.9% | 5.88235% |
1.3% | 12.50000% | 1.9% | 5.88235% | 3.0% | 5.88235% |
1.4% | 12.50000% | 2.0% | 5.88235% | 3.1% | 5.88235% |
2.1% | 5.88235% | 3.2% | 5.88235% | ||
2.2% | 5.88235% | 3.3% | 5.88235% | ||
2.3% | 5.88235% | 3.4% | 5.88235% | ||
2.4% | 5.88235% | 3.5% | 5.88235% | ||
2.5% | 5.88235% | 3.6% | 5.88235% | ||
2.6% | 5.88235% | 3.7% | 5.88235% | ||
2.7% | 5.88235% | 3.8% | 5.88235% | ||
2.8% | 5.88235% | 3.9% | 5.88235% | ||
2.9% | 5.88235% | 4.0% | 5.88235% | ||
[ Ego Recovery ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
1 | 50.00000% | 2 | 50.00000% | 2 | 25.00000% |
2 | 50.00000% | 3 | 50.00000% | 3 | 25.00000% |
4 | 25.00000% | ||||
5 | 25.00000% | ||||
[ Extra Damage % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.5% | 9.09091% | 1.5% | 9.09091% | 2.7% | 12.50000% |
0.6% | 9.09091% | 1.6% | 9.09091% | 2.8% | 12.50000% |
0.7% | 9.09091% | 1.7% | 9.09091% | 2.9% | 12.50000% |
0.8% | 9.09091% | 1.8% | 9.09091% | 3.0% | 12.50000% |
0.9% | 9.09091% | 1.9% | 9.09091% | 3.1% | 12.50000% |
1.0% | 9.09091% | 2.0% | 9.09091% | 3.2% | 12.50000% |
1.1% | 9.09091% | 2.1% | 9.09091% | 3.3% | 12.50000% |
1.2% | 9.09091% | 2.2% | 9.09091% | 3.4% | 12.50000% |
1.3% | 9.09091% | 2.3% | 9.09091% | ||
1.4% | 9.09091% | 2.4% | 9.09091% | ||
1.5% | 9.09091% | 2.5% | 9.09091% | ||
[ Damage over Time % ] | |||||
Uncommon | Rare | Legendary | |||
Value | Probability | Value | Probability | Value | Probability |
0.5% | 9.09091% | 1.5% | 9.09091% | 2.7% | 12.50000% |
0.6% | 9.09091% | 1.6% | 9.09091% | 2.8% | 12.50000% |
0.7% | 9.09091% | 1.7% | 9.09091% | 2.9% | 12.50000% |
0.8% | 9.09091% | 1.8% | 9.09091% | 3.0% | 12.50000% |
0.9% | 9.09091% | 1.9% | 9.09091% | 3.1% | 12.50000% |
1.0% | 9.09091% | 2.0% | 9.09091% | 3.2% | 12.50000% |
1.1% | 9.09091% | 2.1% | 9.09091% | 3.3% | 12.50000% |
1.2% | 9.09091% | 2.2% | 9.09091% | 3.4% | 12.50000% |
1.3% | 9.09091% | 2.3% | 9.09091% | ||
1.4% | 9.09091% | 2.4% | 9.09091% | ||
1.5% | 9.09091% | 2.5% | 9.09091% | ||
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