Honkai Star Rail – Black Swan Kit, Traces, Eidolons, and More

“A sweet-tempered and elegant scholar. Member #81 of the Genius Society. An expert in the biological sciences.

She earned Nous’ attention with her talent and terrifying perseverance, and began her research on the origin of life in a secret corner of the universe.

For that, she was invited by Herta to collaborate with Screwllum and Stephen to develop the Simulated Universe.

Secretly, she greatly enjoys traditional theater and desserts, and she is also very interested in embroidery.”

Black Swan is a 5-star Wind character on the Path of Nihility. Her kit revolves around the unique Arcana debuff that she applies and has good synergy with other DoT effects. Her Arcana debuff has multiple stacks and can deal DoT and other additional effects to the enemy.

Black Swan’s first official appearance was in Version 1.0, in the Myriad Celestia Trailer – Fables of the Stars Part 1 video. More recently, she also appeared in the Game Awards 2023 Candidacy Video as the storyteller recapping the journey of the Trailblazer. Now, a year since her first official appearance, Black Swan is finally playable in Honkai Star Rail after the Version 2.0 update along with the release of Penacony and her first in-game appearance.

Who are the Black Swan voice actors?

For the English voiceover, Black Swan is voiced by Arryn Zech. Her most notable role is Blake Belladonna from the RWBY franchise, in most if not all of her appearances across multiple media and games.

Black Swan’s Japanese voice actor is Hitomi Nabatame. Her previous roles include Shizuru (Princess Connect! Re:Dive), Bazett Fraga McRemitz (Fate/ series), and Amy (Soulcalibur series)

Black Swan Signature Light Cone – Reforged Remembrance (5-star Nihility)

Increases the wearer’s Effect Hit Rate by 40%. When the wearer deals DMG to an enemy inflicted with Wind Shear, Burn, Shock, or Bleed, each respectively grants 1 stack of Prophet, stacking up to 4 time(s). In a single battle, only 1 stack of Prophet can be granted for each type of DoT. Every stack of Prophet increases wearer’s ATK by 5% and enables the DoT dealt to ignore 7.2% of the target’s DEF.

Black Swan Ascension Materials

Raising Black Swan to Level 80 requires the following materials.

• Fragmentum Monster drops:
  • 15 Extinguished Core
  • 15 Glimmering Core
  • 15 Squirming Core
• Stagnant Shadow (Alchemy Commission) drops:
  • 65 Ascendant Debris
• 887,800 Credits
• (anything equivalent to) 5,797,920 EXP:
  • 289 Traveler’s Guide
  • 3 Adventure Log
  • 3 Travel Encounters

Black Swan Skill and Trace Materials

Maxing all of Black Swan’s Skills (Basic ATK to 6, Skill, Ultimate, and Talent to 10) and all Traces will require the following materials.

• Fragmentum Monster drops:
  • 33 Extinguished Core
  • 46 Glimmering Core
  • 28 Squirming Core
• Calyx (Alchemy Commission) drops:
  • 12 Fiery Spirit
  • 53 Starfire Essence
  • 101 Heaven Incinerator
• Echo of War (Seclusion Zone) drops:
  • 9 Past Evils of the Borehole Planet Disaster
• 6 Tracks of Destiny
• 2,197,500 Credits

Black Swan Kit

Jump to: Materials | Skills | Traces | Eidolons

Numbers below are each Trace at Level 1.

Basic ATK – Percipience, Silent Dawn (Single Target)

• Deals Wind DMG 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.
• Deals minor Wind DMG to a single enemy and has a chance of applying Arcana to the target. After targets are inflicted with Wind Shear, Bleed, Burn, or Shock, each respectively has a chance of additionally applying Arcana.

Skill – Decadence, False Twilight (Blast)

• Deals Wind DMG 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).
• Deals minor Wind DMG to a single enemy target and any adjacent targets, with a high chance of inflicting Arcana and lowering the targets’ DEF.

Ultimate – Bliss of Otherworld’s Embrace (AoE)

• Inflicts Epiphany on all enemies for 2 turn(s).
• Enemies affected by Epiphany take 15% more DMG 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.
• Deals Wind DMG equal to 72% of Black Swan’s ATK to all enemies.
• Inflicts Epiphany on all enemies. Affected enemies take more DMG 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. Deals Wind DMG to all enemies.

Talent – Loom of Fate’s Caprice (Impair)

• 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 DMG multiplier by 4.8%. 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% of Black Swan’s ATK to adjacent targets, with a 50% 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.
• When an enemy target receives DoT at the start of each turn, there is a chance for it to be inflicted with Arcana. They receive Wind DoT at the start of the turn, and Black Swan triggers additional effects based on the number of Arcana stacks.

Technique – From Façade to Vérité (Enhance)

• 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.
• After this Technique is used, at the start of the next battle, there is a high chance for each enemy to be inflicted with Arcana repeatedly until Arcana fails to be inflicted.

Honkai Star Rail – Black Swan Traces

Viscera’s Disquiet (requires Ascension 2) – 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.

• Wind DMG +3.2% (requires Ascension 2)
  • ATK +4% (requires Ascension 3)
    • Effect Hit Rate +4% (requires Ascension 3)

Goblet’s Dredges (requires Ascension 4) – 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.

• ATK +6% (requires Ascension 4)
  • Wind DMG +4.8% (requires Ascension 5)
    • ATK +6% (requires Ascension 5)

Candleflame’s Portent (requires Ascension 6) – Increases this unit’s DMG by an amount equal to 60% of Effect Hit Rate, up to a maximum DMG increase of 72%.

• Effect Hit Rate +6% (requires Ascension 6)
• Wind DMG +6.4% (requires Lv. 75)

ATK +4%

• ATK +8% (requires Lv. 80)

Black Swan Eidolons

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Seven Pillars of Wisdom

• 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%.

Weep Not For Me, My Lamb

• 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.

As Above, So Below

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

In Tears We Gift

• 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.

Linnutee Flyway

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

Pantheon Merciful, Masses Pitiful

• 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.

Black Swan became playable on Honkai Star Rail Version 2.0. Honkai: Star Rail is available for iOS, Android, Windows PC, and the Epic Games Store. Data taken from Honey Impact.