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Black Swan

Last updated 2026-08-24

"If I can identify and encapsulate a fragment of memory before it's unveiled to the world, those solitary moments of delight are my most favored and unique memories."[4]

Black Swan is a playable character in Honkai: Star Rail.

A Memokeeper from the Garden of Recollection. A mysterious and elegant soothsayer.[5]

Bears a warm smile and is willing to patiently heed the words of another, and thus uses such means as a pretext to enter "memories" and gain a comprehension over the flow of all information. Feels strongly about collecting unique memories, yet the thoughts that guide her are hard to glean.[4]

Combat Info

Ascensions and Stats

Toggle Ascension Materials

Ascension
Phase
LevelBase
HP
Base
ATK
Base
DEF
Base
SPD
0✦1/201478966102
20/20288175128102
Ascension Cost (0 → 1)
Extinguished Core 5
1✦20/30347210155102
30/30421255188102
Ascension Cost (1 → 2)
2✦30/40480291214102
40/40554336247102
Ascension Cost (2 → 3)
Ascendant Debris 3
Glimmering Core 6
3✦40/50613372273102
50/50687417306102
Ascension Cost (3 → 4)
Ascendant Debris 7
Glimmering Core 9
4✦50/60746453333102
60/60820498366102
Ascension Cost (4 → 5)
Squirming Core 6
5✦60/70879534392102
70/70953578425102
Ascension Cost (5 → 6)
Squirming Core 9
6✦70/801,012614452102
80/801,086659485102
Total Ascension Cost (0✦ → 6✦)
Credit 308,000 Credit

Abilities

  • Base
  • Enhanced
IconTypeNameTagEnergyToughness
Reduction
Ability Percipience, Silent DawnBasic ATKPercipience, Silent DawnSingle TargetGeneration: 2010
  • Description
  • Scaling
  • Preview

Deals Wind DMG equal to 30%—66% of Black Swan's ATK to a single target enemy, with a 50%—68% base chance of inflicting 1 stack of Arcana on the target. Additionally, when attacking a target that suffers Wind Shear, Bleed, Burn, or Shock, there is respectively a 50%—68% base chance of inflicting 1 extra stack of Arcana on the target.

Level1234567
Attr. 130%36%42%48%54%60%66%
Attr. 250%53%56%59%62%65%68%
Attr. 350%53%56%59%62%65%68%
Ability Decadence, False TwilightSkillDecadence, False TwilightBlastGeneration: 3020 (Main)
10 (Adjacent)
  • Description
  • Scaling
  • Preview

Deals Wind DMG equal to 45%—99% of Black Swan's ATK to a single target enemy and any adjacent targets. At the same time, there is a 100% base chance of inflicting 1 stack of Arcana on the target enemy and the adjacent targets. Additionally, there is a 100% base chance of reducing the DEF of the target enemy and the adjacent targets by 14.8%—22%, lasting for 3 turn(s).

Level123456789101112
Attr. 145%49.5%54%58.5%63%67.5%73.125%78.75%84.375%90%94.5%99%
Attr. 214.8%15.4%16%16.6%17.2%17.8%18.55%19.3%20.05%20.8%21.4%22%
Ability Bliss of Otherworld's EmbraceUltimateBliss of Otherworld's EmbraceAoECost: 120
Generation: 5
20
  • Description
  • Gameplay Notes
  • Scaling
  • Preview
  • Unique Status Effects

Inflicts Epiphany on all enemies for 2 turn(s).
While afflicted with Epiphany, enemies take 15%—27% increased DMG in their turn. Additionally, if enemies are also inflicted with Arcana, they are considered to be simultaneously afflicted with Wind Shear, Bleed, Burn, and Shock. After Arcana causes DMG at the start of each turn, its stacks are not reset. This non-reset effect of Arcana stacks can be triggered up to 1 time(s) for the duration of Epiphany. And the trigger count resets when Epiphany is applied again.
Deals Wind DMG equal to 72%—129.6% of Black Swan's ATK to all enemies.

Level123456789101112
Attr. 115%16%17%18%19%20%21.25%22.5%23.75%25%26%27%
Attr. 272%76.8%81.6%86.4%91.2%96%102%108%114%120%124.8%129.6%
Debuffs
IconNameDescription
Icon Epiphany (Debuff)
EpiphanyThe DMG received increases by 15%—27% during this unit's turn. While in Arcana state, this unit is also considered to be simultaneously inflicted with Wind Shear, Bleed, Burn, and Shock. Additionally, after Arcana causes DMG at the start of each turn, its stacks do not reset. This effect can trigger more time(s).
Ability Loom of Fate's CapriceTalentLoom of Fate's CapriceImpair
  • Description
  • Gameplay Notes
  • Scaling
  • Preview
  • Unique Status Effects

Every time an enemy target receives DoT at the start of each turn, there is a 50%—68% base chance for it to be inflicted with 1 stack of Arcana.
While afflicted with Arcana, enemy targets receive Wind DoT equal to 96%—264% of Black Swan's ATK at the start of each turn. Each stack of Arcana increases this DMG multiplier by 4.8%—13.2%. Then Arcana resets to 1 stack. Arcana can stack up to 50 times.
Only when Arcana causes DMG at the start of an enemy target's turn, Black Swan triggers additional effects based on the number of Arcana stacks inflicted on the target:
When there are 3 or more Arcana stacks, deals Wind DoT equal to 72%—198% of Black Swan's ATK to adjacent targets, with a 50%—68% base chance of inflicting 1 stack of Arcana on adjacent targets.
When there are 7 or more Arcana stacks, enables the current DoT dealt this time to ignore 20% of the target's and adjacent targets' DEF.

  • Arcana DMG is always dealt at the end of the queue (after the other DoTs).
Level123456789101112
Attr. 150%51.5%53%54.5%56%57.5%59.375%61.25%63.125%65%66.5%68%
Attr. 296%111.84%127.68%143.52%159.36%175.2%189.6%204%222%240%252%264%
Attr. 34.8%5.592%6.384%7.176%7.968%8.76%9.48%10.2%11.1%12%12.6%13.2%
Attr. 472%83.88%95.76%107.64%119.52%131.4%142.2%153%166.5%180%189%198%
Debuffs
IconNameDescription
Icon Arcana
Arcana(Unremovable) Takes Wind DMG at the start of each turn. Being afflicted with Arcana will also be considered as suffering from Wind Shear. This state stacks up to times.
Ability From Façade to VéritéTechniqueFrom Façade to VéritéEnhance
  • Description
  • Preview
  • Unique Status Effects

After this Technique is used, there is a 150% base chance for each enemy to be inflicted with 1 stack of Arcana at the start of the next battle. For each successful application of Arcana on a target, inflicts another stack of Arcana on the same target. This process repeats until Arcana fails to be inflicted on this target. For each successive application of Arcana on a target, its base chance of success is equal to 50% of the base chance of the previous successful infliction of Arcana on that target.

Others
IconNameDescription
Icon Excessive Praise
Excessive PraiseAt the start of the next battle, there is a 150% base chance to inflict 1 stack of Arcana on each enemy. For each successful application of Arcana on a target, inflicts another stack of Arcana on the same target. This process repeats until Arcana fails to be inflicted on this target. The base chance for Arcana to be inflicted is equal to 50% of the base chance of the previous successful infliction of Arcana.
IconTypeNameTagEnergyToughness
Reduction
Ability Percipience, Silent DawnBasic ATKPercipience, Silent DawnSingle TargetGeneration: 2010
  • Description
  • Scaling
  • Preview

Deals Wind DMG equal to 50%—110% of Black Swan's ATK to one designated enemy.

Level1234567
Attr. 150%60%70%80%90%100%110%
Ability Decadence, False TwilightSkillDecadence, False TwilightBlastGeneration: 3020 (Main)
10 (Adjacent)
  • Description
  • Scaling
  • Preview

Deals Wind DMG equal to 45%—99% of Black Swan's ATK to one designated enemy and adjacent targets. At the same time, there is a 100% base chance of reducing the DEF of the enemy target and the adjacent targets by 14.8%—22%, lasting for 3 turn(s).

Level123456789101112
Attr. 145%49.5%54%58.5%63%67.5%73.125%78.75%84.375%90%94.5%99%
Attr. 214.8%15.4%16%16.6%17.2%17.8%18.55%19.3%20.05%20.8%21.4%22%
Ability Bliss of Otherworld's EmbraceUltimateBliss of Otherworld's EmbraceAoECost: 120
Generation: 5
20
  • Description
  • Scaling
  • Preview
  • Unique Status Effects

Inflicts "Epiphany" state on all enemies for 2 turn(s). Then deals Wind DMG to all enemies equal to 72%-129.6% of Black Swan's ATK.
While in the "Epiphany" state, enemy targets take 15%-27% increased DMG. For every 1 stack of "Arcana inflicted," there is a 50% fixed chance to additionally increase the number of "Arcana" stacked this time by 1. And "Arcana" stacks won't be halved after dealing DMG at the start of the turn.

Level123456789101112
Attr. 172%76.8%81.6%86.4%91.2%96%102%108%114%120%124.8%129.6%
Attr. 215%16%17%18%19%20%21.25%22.5%23.75%25%26%27%
Debuffs
IconNameDescription
Icon Epiphany (Debuff)
Epiphany (Debuff)DMG taken increases by 15%—27%. When enemy targets are inflicted with "Arcana," there is a 50% fixed chance to additionally increase the number of "Arcana" stacked this time by 1. And the number of "Arcana" stacks will not be halved after dealing DMG at the start of the turn.
Ability Loom of Fate's CapriceTalentLoom of Fate's CapriceImpair
  • Description
  • Scaling
  • Preview
  • Unique Status Effects

Every time an enemy target receives 1 instance of DoT, there is a 50%—68% base chance for it to be inflicted with 1 stack of "Arcana".
While an enemy target is in the "Arcana" state, they are also considered to be simultaneously afflicted with Wind Shear, Bleed, Burn, and Shock. The target receives Wind DoT equal to 96-264% of Black Swan's ATK at the start of each turn, after which the number of stacks is halved. Each stack of "Arcana" increases this DMG multiplier by 4.8%-13.2%. "Arcana" can stack 50 times, and can continue to stack beyond this limit, with the excess stacks removed after dealing DMG.
DMG from "Arcana" ignores 20% of the target's DEF. Only when "Arcana" deals DMG at the start of the enemy target's turn, adjacent targets take 1 additional instance of Wind DoT equal to 72%-198% of Black Swan's ATK.

Level123456789101112
Attr. 150%51.5%53%54.5%56%57.5%59.375%61.25%63.125%65%66.5%68%
Attr. 296%111.84%127.68%143.52%159.36%175.2%189.6%204%222%240%252%264%
Attr. 34.8%5.592%6.384%7.176%7.968%8.76%9.48%10.2%11.1%12%12.6%13.2%
Attr. 472%83.88%95.76%107.64%119.52%131.4%142.2%153%166.5%180%189%198%
Debuffs
IconNameDescription
Icon Arcana
Arcana(Unremovable) Takes Wind DMG at the start of each turn. While in the "Arcana" state, will also be considered as suffering from Wind Shear, Bleed, Burn, and Shock.

Traces

Trace
Level
Required
Ascension
Credits
[Subtotal]
Character Ascension Materials
and Trace Materials
[Subtotal]
Trace Materials
[Subtotal]
1 → 22✦
Credit 5,000 [5,000]
Extinguished Core 6 [6]
Fiery Spirit 3 [3]
2 → 33✦
Credit 10,000 [15,000]
Glimmering Core 3 [3]
Starfire Essence 3 [3]
3 → 44✦
Credit 20,000 [35,000]
Glimmering Core 4 [7]
Starfire Essence 5 [8]
4 → 55✦
Credit 45,000 [80,000]
Squirming Core 3 [3]
Heaven Incinerator 3 [3]
5 → 66✦
Credit 160,000 [240,000]
Squirming Core 4 [7]
Heaven Incinerator 8 [11]
Total Cost (1 → 6 for Basic ATK Trace)
Credit 240,000 Credit
Trace
Level
Required
Ascension
Credits
[Subtotal]
Character Ascension Materials
and Trace Materials
[Subtotal]
Trace Materials
[Subtotal]
1 → 21✦
Credit 2,500 [2,500]
Extinguished Core 3 [3]
2 → 32✦
Credit 5,000 [7,500]
Extinguished Core 6 [9]
Fiery Spirit 3 [3]
3 → 43✦
Credit 10,000 [17,500]
Glimmering Core 3 [3]
Starfire Essence 3 [3]
4 → 54✦
Credit 20,000 [37,500]
Glimmering Core 4 [7]
Starfire Essence 5 [8]
5 → 6
Credit 30,000 [67,500]
Glimmering Core 6 [13]
Starfire Essence 7 [15]
6 → 75✦
Credit 45,000 [112,500]
Squirming Core 3 [3]
Heaven Incinerator 3 [3]
7 → 8
Credit 80,000 [192,500]
Squirming Core 4 [7]
Heaven Incinerator 5 [8]
Past Evils of the Borehole Planet Disaster 1 [1]
8 → 96✦
Credit 160,000 [352,500]
Heaven Incinerator 8 [16]
Past Evils of the Borehole Planet Disaster 1 [2]
Tracks of Destiny 1 [1]
9 → 10
Credit 300,000 [652,500]
Heaven Incinerator 14 [30]
Past Evils of the Borehole Planet Disaster 1 [3]
Tracks of Destiny 1 [2]
  • Base
  • Enhanced
Icon ATK ATK Boost
ATK increases by 4.0%
Icon ATK ATK Boost
ATK increases by 8.0%
Req. Character Lv. 80
Trace Viscera's Disquiet Viscera's Disquiet
After using Skill to attack one designated enemy that has Wind Shear, Bleed, Burn, or Shock, each of these debuffs respectively has a 65% base chance of inflicting 1 extra stack of Arcana.
Req. Character Ascension 2
Icon Wind DMG Boost DMG Boost: Wind
Wind DMG increases by 3.2%
Req. Character Ascension 2
Icon ATK ATK Boost
ATK increases by 4.0%
Req. Character Ascension 3
Icon Effect Hit Rate Effect Hit Rate Boost
Effect Hit Rate increases by 4.0%
Req. Character Ascension 3
Trace Goblet's Dredges Goblet's Dredges
When an enemy target enters battle, there is a 65% base chance for it to be inflicted with 1 stack of Arcana.
Every time an enemy target receives 1 instance of DoT during a single attack by an ally, there is a 65% base chance for the target to be inflicted with 1 stack of Arcana. The maximum number of stacks that can be inflicted during 1 single attack is 3.
Req. Character Ascension 4
Icon ATK ATK Boost
ATK increases by 6.0%
Req. Character Ascension 4
Icon Wind DMG Boost DMG Boost: Wind
Wind DMG increases by 4.8%
Req. Character Ascension 5
Icon ATK ATK Boost
ATK increases by 6.0%
Req. Character Ascension 5
Trace Candleflame's Portent Candleflame's Portent
Increases this unit's DMG by an amount equal to 60% of Effect Hit Rate, up to a maximum DMG increase of 72%.
Req. Character Ascension 6
Icon Effect Hit Rate Effect Hit Rate Boost
Effect Hit Rate increases by 6.0%
Req. Character Ascension 6
Icon Wind DMG Boost DMG Boost: Wind
Wind DMG increases by 6.4%
Req. Character Lv. 75
IconNameAscension
Trace Viscera's Disquiet
Viscera's Disquiet2
When an enemy target gets attacked by Black Swan, there is a 65% base chance of inflicting 5 stack(s) of "Arcana" on them.
Trace Goblet's Dredges
Goblet's Dredges4
When an enemy targets enters combat, there is a 65% base chance for it to be inflicted with 1 stack of "Arcana," and a 100% base chance to be inflicted with the DEF reduction effect from the Skill, which lasts for 3 turn(s).
After using Basic ATK or Ultimate, there is also a 100% base chance to inflict the DEF reduction effect from the Skill on the hit enemy targets, which lasts for 3 turn(s).
Trace Candleflame's Portent
Candleflame's Portent6
Increases the DMG dealt by all allies by an amount equal to 60% of Black Swan's Effect Hit Rate, up to a maximum DMG increase of 72%.

Eidolons

  • Base
  • Enhanced
IconNameLevel
Eidolon Seven Pillars of WisdomSeven Pillars of Wisdom
1
  • Description
  • Gameplay Notes

While Black Swan is active in battle, enemies afflicted with Wind Shear, Bleed, Burn, or Shock will have their corresponding Wind, Physical, Fire, or Lightning RES respectively reduced by 25%.

Eidolon Weep Not For Me, My LambWeep Not For Me, My Lamb
2
When an enemy target afflicted with "Arcana" is defeated, there is a 100% base chance of inflicting 6 stack(s) of "Arcana" on adjacent targets.
Eidolon As Above, So BelowAs Above, So Below
3
Skill Lv. +2, up to a maximum of Lv. 15.
Talent Lv. +2, up to a maximum of Lv. 15.
Eidolon In Tears We GiftIn Tears We Gift
4
While in the Epiphany state, enemy targets have their Effect RES reduced by 10% and Black Swan regenerates 8 Energy at the start of these targets' turns or when they are defeated. This Energy Regeneration effect can only trigger up to 1 time while Epiphany lasts. The trigger count is reset when Epiphany is applied again.
Eidolon Linnutee FlywayLinnutee Flyway
5
Ultimate Lv. +2, up to a maximum of Lv. 15.
Basic ATK Lv. +1, up to a maximum of Lv. 10.
Eidolon Pantheon Merciful, Masses PitifulPantheon Merciful, Masses Pitiful
6
When an enemy target is attacked by Black Swan's teammates, Black Swan has a 65% base chance of inflicting 1 stack of "Arcana" on the target.
Every time Black Swan inflicts "Arcana" on an enemy target, there is a 50% fixed chance to additionally increase the number of "Arcana" stacked this time by 1.
IconNameLevel
Eidolon Weep Not For Me, My LambWeep Not For Me, My Lamb
2
When enemy targets enter combat, there is a 100% base chance to inflict 30 stack(s) of "Arcana" on them.
Eidolon In Tears We GiftIn Tears We Gift
4
While in the "Epiphany" state, enemy targets take 20% increased DMG. And at the start of every turn or when they get defeated, regenerates 8 Energy for Black Swan.
Eidolon Pantheon Merciful, Masses PitifulPantheon Merciful, Masses Pitiful
6
The upper limit of stackable "Arcana" increases by 30.
When an enemy target gets attacked by Black Swan's teammates, Black Swan has a 65% base chance of inflicting 1 stack of "Arcana" on the target.
For every 1 stack of "Arcana" Black Swan inflicts on an enemy target, additionally increases the number of "Arcana" stacked this time by 1.

Achievements

There are 1 Achievements related to Black Swan:

Name Category Description Hidden Version Item Stellar Jade

All Is Predestined Eager for Battle Inflict at least 20 stacks of Arcana on enemies when Black Swan uses her Technique "From Façade to Vérité" and enters a battle Yes 2.0 5

Availability

Event Warps

Black Swan has been promoted or featured with a drop-rate boost in 3 Event Warps:

Warp Featured Duration Version
Ripples in Reflection 2024-02-06
Ripples in Reflection 2024-02-06
WindBlack Swan Black Swan
February 6, 2024 – February 29, 2024 2.0
Indelible Coterie 2024-09-10
Indelible Coterie 2024-09-10
WindBlack Swan Black Swan
September 10, 2024 – October 2, 2024 2.5
Indelible Coterie 2026-02-13
Indelible Coterie 2026-02-13
WindBlack Swan Black Swan
February 13, 2026 – March 3, 2026 4.0

Other Languages

LanguageOfficial Name
EnglishBlack Swan
Chinese
(Simplified)
黑天鹅
Chinese
(Traditional)
黑天鵝
Japaneseブラックスワン
Korean블랙 스완
SpanishCisne Negro
FrenchCygne noir
RussianЧёрный Лебедь
ThaiBlack Swan
VietnameseBlack Swan
GermanSchwarzer Schwan
IndonesianBlack Swan
PortugueseCisne Negro

Change History

Introduced in Version 1.0 • Released in Version 2.0

Version 4.0

  • Black Swan's abilities were permanently enhanced as part of Novaflare.

Version 3.8

  • Updates to character voice-overs:
    • New voice-over for All Languages:
      • "About The Dahlia"
      • "Added to Team With The Dahlia"

Version 3.7

  • Updates to character voice-overs:
    • New voice-over for All Languages:
      • "About Cyrene"
      • "Added to Team With Cyrene"

Version 3.6

  • Updates to character voice-overs:
    • New voice-over for All Languages:
      • "About Evernight"
      • "Added to Team With Evernight"

Version 2.7

  • Black Swan became an overworld NPC in the Party Car.

Version 2.6

  • Updates to character voice-overs:
    • New voice-over for All Languages:
      • "About Mr. Reca"
  • Black Swan's designated category on the official website was updated from Penacony to Cosmic.

Version 2.2

  • Updates to character voice-overs:
    • New voice-over for All Languages:
      • "About Misha"
      • "About Robin"
      • "About Boothill"
      • "Added to Team With Misha"
      • "Added to Team With Robin"
      • "Added to Team With Boothill"

Version 2.1

  • Updates to character voice-overs:
    • New voice-over for All Languages:
      • "Added to Team With Acheron"
      • "Added to Team With Aventurine"

Version 2.0

  • Black Swan was released as a playable character.

Version 1.0

  • Black Swan was introduced.

References

  1. Trailblaze Mission, Welcome to Arcadia: Phantasmoon, the Merciful Queen
  2. Data Bank, Characters, Black Swan: Character Story: Part I
  3. 3.0 3.1 3.2 3.3 千星纪游PV:「有关星空的寓言集•其一」, Honkai: Star Rail Bilibili. Retrieved May 3, 2023.
  4. 4.0 4.1 Character Reveal, Honkai: Star Rail Twitter. Retrieved December 11, 2023.
  5. Data Bank, Characters, Black Swan: Character Story: Part III

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