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Black Swan Honkai: Star Rail fighter artwork
Honkai: Star Rail Move & Ability Guide

Black Swan moves, skills and special abilities

Move & Ability Guide

Black Swan: 5-Star, Wind, The Nihility. Faction: Garden of Recollection — Remembrance.

42 ability entries3 Skills2 Ultimates2 Talent5 Bonus Trace20 Stat Trace2 Technique2 Basic Atk6 Eidolon

Skills

3
Decadence, False Twilight
Skill

Inflicts Wind damage equal to 45% 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. And there is a 100% base chance of reducing the DEF of the target enemy and the adjacent targets by 14.8% , lasting for 3 turn(s).

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Viscera's Disquiet
Skill

After using the Skill to hit an 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.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Decadence, False Twilight (Enhanced)
Skill

Inflicts Wind damage equal to 45% 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% , lasting for 3 turn(s).

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Ultimates

2
Bliss of Otherworld's Embrace
Ultimate

Inflicts Epiphany on all enemies for 2 turn(s). Enemies affected by Epiphany take 15% more damage in their turn, and their Arcana effect is regarded as Wind Shear , Bleed , Burn , and Shock effects. In addition, when their Arcana effect is triggered at the beginning of the next turn, the Arcana stacks are not reset. The stack non-reset effect can be triggered up to 1 time(s) in Epiphany's duration, and its charges are replenished when Epiphany is applied again. Inflicts Wind damage equal to 72% of Black Swan's ATK to all enemies.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Bliss of Otherworld's Embrace (Enhanced)
Ultimate

Inflicts "Epiphany" state on all enemies for 2 turn(s). Then inflicts Wind damage to all enemies equal to 72% of Black Swan's ATK. While in the "Epiphany" state, enemy targets take 15% increased damage. 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 damage at the start of the turn.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Talent

2
Loom of Fate's Caprice
Talent

Every time an enemy target receives DoT at the start of each turn, there is a 50% base chance for it to be inflicted with Arcana. While afflicted with Arcana, enemy targets receive Wind DoT equal to 96% of Black Swan's ATK at the start of each turn. Each stack of Arcana increases this DoT damage multiplier by 4.8% . Then Arcana resets to 1 stack. Arcana can stack up to 50 times. Only when Arcana causes damage 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, inflicts Wind DoT equal to 72% of Black Swan's ATK to adjacent targets, with a 50% base chance of inflicting 1 stack of Arcana on adjacent targets.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Loom of Fate's Caprice (Enhanced)
Talent

Every time an enemy target receives 1 instance of DoT, there is a 50% 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% 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 damage multiplier by 4.8% . "Arcana" can stack 50 times, and can continue to stack beyond this limit, with the excess stacks removed after dealing damage.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Bonus Trace

5
Candleflame's Portent
Bonus Trace

Increases this unit's damage by an amount equal to 60% of Effect Hit Rate, up to a maximum damage increase of 72%.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Goblet's Dredges
Bonus Trace

There is a 65% base chance to inflict 1 stack of Arcana when a target enters battle. Every time an enemy target receives 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, stacking up to 3 time(s) during 1 single attack.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Candleflame's Portent (Enhanced)
Bonus Trace

Increases the damage dealt by all allies by an amount equal to 60% of Black Swan's Effect Hit Rate, up to a maximum damage increase of 72%.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Goblet's Dredges (Enhanced)
Bonus Trace

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).

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Viscera's Disquiet (Enhanced)
Bonus Trace

When an enemy target gets attacked by Black Swan, there is a 65% base chance of inflicting 5 stack(s) of "Arcana" on them.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Stat Trace

20
DMG Boost: Wind
Stat Trace

Wind damage increases by 6.4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Effect Hit Rate Boost
Stat Trace

Effect Hit Rate increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
DMG Boost: Wind
Stat Trace

Wind damage increases by 4.8%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 8%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
DMG Boost: Wind
Stat Trace

Wind damage increases by 3.2%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost
Stat Trace

ATK increases by 4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Effect Hit Rate Boost
Stat Trace

Effect Hit Rate increases by 4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
DMG Boost: Wind (Enhanced)
Stat Trace

Wind damage increases by 6.4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Effect Hit Rate Boost (Enhanced)
Stat Trace

Effect Hit Rate increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost (Enhanced)
Stat Trace

ATK increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
DMG Boost: Wind (Enhanced)
Stat Trace

Wind damage increases by 4.8%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost (Enhanced)
Stat Trace

ATK increases by 6%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost (Enhanced)
Stat Trace

ATK increases by 4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost (Enhanced)
Stat Trace

ATK increases by 8%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
DMG Boost: Wind (Enhanced)
Stat Trace

Wind damage increases by 3.2%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
ATK Boost (Enhanced)
Stat Trace

ATK increases by 4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Effect Hit Rate Boost (Enhanced)
Stat Trace

Effect Hit Rate increases by 4%

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Technique

2
From Façade to Vérité
Technique

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.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
From Façade to Vérité (Enhanced)
Technique

After 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.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Basic Atk

2
Percipience, Silent Dawn
Basic ATK

Inflicts Wind damage equal to 30% of Black Swan's ATK to a single target enemy, with a 50% base chance of inflicting 1 stack of Arcana. And if the hit target currently has Wind Shear , Bleed , Burn , or Shock applied to them, each respectively has a 50% base chance of inflicting 1 extra stack of Arcana onto the enemy.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Percipience, Silent Dawn (Enhanced)
Basic ATK

Inflicts Wind damage equal to 50% of Black Swan's ATK to one designated enemy.

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.

Eidolon

6
Seven Pillars of Wisdom
Eidolon

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%.

Requirements / unlock: Eidolon 1

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Weep Not For Me, My Lamb
Eidolon

Pre-Enhanced: 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. Enhanced: When enemy targets enter combat, there is a 100% base chance to inflict 30 stack(s) of "Arcana" on them.

Requirements / unlock: Eidolon 2

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
As Above, So Below
Eidolon

Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.

Requirements / unlock: Eidolon 3

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
In Tears We Gift
Eidolon

Pre-Enhanced: While in the Epiphany state, enemy targets have their Effect RES reduced by 10%. And at the start of their turn or when they get defeated, Black Swan regenerates 8 Energy. This Energy Regeneration effect can only trigger up to 1 time while Epiphany lasts. And this trigger count resets after the enemy gets inflicted with Epiphany again. Enhanced: While in the "Epiphany" state, enemy targets take 20% increased damage. And at the start of every turn or when they get defeated, regenerates 8 Energy for Black Swan.

Requirements / unlock: Eidolon 4

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Linnutee Flyway
Eidolon

Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.

Requirements / unlock: Eidolon 5

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.
Pantheon Merciful, Masses Pitiful
Eidolon

Pre-Enhanced: When enemy targets get attacked by Black Swan's allies, Black Swan has a 65% base chance of inflicting 1 stack of Arcana on the target. Each time Black Swan inflicts Arcana on an enemy target, there is a 50% fixed chance to additionally increase the number of Arcana stacks afflicted this time by 1. Enhanced: 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.

Requirements / unlock: Eidolon 6

Source details & verification
HoYoWiki mechanics reference (community-editable), reviewed October 29, 2026. This is a concise mechanics index; the source contains full conditions and level-dependent scaling. Not independently tested in-game.