Quantum
Last updated 2026-04-14
Quantum is one of the seven Types in Honkai: Star Rail.
Combat
Main article: Toughness
Using Quantum attacks to inflict Weakness Break will deal Quantum DMG and cause Entanglement, delaying the enemy's action and dealing Additional Quantum DMG to the affected enemy at the start of the next turn. When the enemy is hit, this extra DMG will increase.
Inflicting Quantum Break using Quantum attacks deals Break DMG equal to and has a 150% base chance to apply Entanglement.
Entanglement debuffs applied by Quantum Weakness Breaks deal Quantum DMG equal to to enemies at the beginning of each turn, lasting for 1 turn, and delays their action by . When the Entangled target is hit, 1 additional stack is applied, up to a maximum of 5 stacks.
Characters
Playable Characters
13 Characters match the category selection:
Upcoming Characters
1 Character matches the category selection:
| Character | Rarity | Path |
|---|---|---|
 Aventurine • Waveflair |  |  Elation |
Relic Sets
2 Relic Sets grant Quantum DMG Boost:
| Icon | Set | Pieces | Bonuses |
|---|---|---|---|
|
Genius of Brilliant Stars |        
|
2 Piece: Increases Quantum DMG by 10%. 4 Piece: When the wearer deals DMG to the target enemy, ignores 10% DEF. If the target enemy has Quantum Weakness, the wearer additionally ignores 10% DEF. |
|
Poet of Mourning Collapse |        
|
2 Piece: Increases Quantum DMG by 10%. 4 Piece: Decreases the wearer's SPD by 8%. Before entering battle, if the wearer's SPD is lower than 110/95, increases the wearer's CRIT Rate by 20%/32%. This effect applies to the wearer's memosprite at the same time. |
Enemies
Quantum Enemies
45 Enemies deal Quantum DMG:
Quantum-Weak Enemies
131 Enemies are weak to Quantum:
Achievements
There are 4 Achievements related to Quantum:
|
|
Name | Category | Description | Hidden | Version | 
|
|---|---|---|---|---|---|---|
|
|
Schrödinger's Other Cat | Eager for Battle | Inflict 5 Quantum Weakness Breaks in a single battle | No | 1.0 | 5 |
|
|
Quantum Breaker (I) | Eager for Battle | Inflict Quantum Weakness Break 100 time(s) | No | 1.0 | 5 |
|
|
Quantum Breaker (II) | Eager for Battle | Inflict Quantum Weakness Break 300 time(s) | No | 1.0 | 5 |
|
|
Quantum Test | Moment of Joy | Win 10 battle(s) with a team that has 4 Quantum-Type character(s) | Yes | 1.0 | 5 |
Other Languages
| Language | Official Name |
|---|---|
| English | Quantum |
| Chinese (Simplified) | 量子 |
| Chinese (Traditional) | 量子 |
| Japanese | 量子 |
| Korean | 양자 |
| Spanish | Cuántico |
| French | Quantique |
| Russian | Квантовый |
| Thai | ควอนตัม |
| Vietnamese | Lượng Tử |
| German | Quantum |
| Indonesian | Quantum |
| Portuguese | Quântico |
Change History
Released in Version 1.0
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