Hysilens
Last updated 2026-09-11
Hysilens, real name Helektra,[5] is a playable character in Honkai: Star Rail.
Styxia, a coastal city of intoxication and dreams, where echoes of old songs still drift among the waves. Helektra, Daughter of the Sea, Chrysos Heir who cleanses the Ocean's Coreflame, dispels the murky undercurrents and orchestrates a feast of revelry for the heroes beyond the sky.
— The show must go on. Even if hope is as fragile as bubbles, the waves will keep surging forward.[5]
Combat Info
Ascensions and Stats
| Ascension Phase | Level | Base HP | Base ATK | Base DEF | Base SPD | Ascension Costs |
|---|---|---|---|---|---|---|
| 0✦ | 1/20 | 163 | 81 | 66 | 102 | (0 → 1) |
| 20/20 | 319 | 159 | 128 | 102 | ||
| Ascension Cost (0 → 1) | ||||||
| 1✦ | 20/30 | 384 | 192 | 155 | 102 | (1 → 2) |
| 30/30 | 466 | 233 | 188 | 102 | ||
| Ascension Cost (1 → 2) | ||||||
| 2✦ | 30/40 | 531 | 265 | 214 | 102 | (2 → 3) |
| 40/40 | 613 | 306 | 247 | 102 | ||
| Ascension Cost (2 → 3) | ||||||
| 3✦ | 40/50 | 679 | 339 | 273 | 102 | (3 → 4) |
| 50/50 | 761 | 380 | 306 | 102 | ||
| Ascension Cost (3 → 4) | ||||||
| 4✦ | 50/60 | 826 | 413 | 333 | 102 | (4 → 5) |
| 60/60 | 908 | 454 | 366 | 102 | ||
| Ascension Cost (4 → 5) | ||||||
| 5✦ | 60/70 | 973 | 486 | 392 | 102 | (5 → 6) |
| 70/70 | 1,055 | 527 | 425 | 102 | ||
| Ascension Cost (5 → 6) | ||||||
| 6✦ | 70/80 | 1,121 | 560 | 452 | 102 | — |
| 80/80 | 1,203 | 601 | 485 | 102 | ||
308,000 CreditAbilities
| Icon | Type | Name | Tag | Energy | Toughness Reduction | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | Basic ATK | Aeolian Mode: Echoes in Still Waters | Single Target | Generation: 20 | 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Skill | Overtone Hum: Chorus After Dark Tides | AoE | Generation: 30 | 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Has a 100% base chance to increase the DMG taken by all enemies by 10%—22%, lasting for 3 turn(s). At the same time, deals Physical DMG equal to 70%—154% of Hysilens's ATK to all enemies.
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 | Ultimate | Maelstrom Rhapsody | AoE | Cost: 110 Generation: 5 | 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hysilens deploys a Zone that reduces enemy targets' ATK by 15% and DEF by 15%—27%, and deals Physical DMG equal to 120%—216% of Hysilens's ATK to all enemies.
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 | Talent | Sirenic Serenade | Impair | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
When an ally target attacks, there is a 100% base chance for Hysilens to inflict the hit enemy target with one of the following states: Wind Shear, Bleed, Burn, or Shock. Priority is given to inflicting a different state.
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 | Technique | At Ocean's Abode | Impair | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
After using Technique, creates a Special Dimension that lasts for 20 seconds and automatically moves forward. Enemies within the Special Dimension enter the "Soulstruck" state. "Soulstruck" enemies will not attack ally targets and will follow the dimension while it persists.
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Traces
| Trace Level | Required Ascension | Credits [Subtotal] | Character Ascension Materials and Trace Materials [Subtotal] | Trace Materials [Subtotal] |
|---|---|---|---|---|
| 1 → 2 | 2✦ | 5,000 [5,000] |  6 [6] |  3 [3] |
| 2 → 3 | 3✦ | 10,000 [15,000] |  3 [3] |  3 [3] |
| 3 → 4 | 4✦ | 20,000 [35,000] | 4 [7] | 5 [8] |
| 4 → 5 | 5✦ | 45,000 [80,000] |  3 [3] |  3 [3] |
| 5 → 6 | 6✦ | 160,000 [240,000] | 4 [7] | 8 [11] |
240,000 Credit| Trace Level | Required Ascension | Credits [Subtotal] | Character Ascension Materials and Trace Materials [Subtotal] | Trace Materials [Subtotal] | ||
|---|---|---|---|---|---|---|
| 1 → 2 | 1✦ | 2,500 [2,500] | 3 [3] | |||
| 2 → 3 | 2✦ | 5,000 [7,500] | 6 [9] | 3 [3] | ||
| 3 → 4 | 3✦ | 10,000 [17,500] | 3 [3] | 3 [3] | ||
| 4 → 5 | 4✦ | 20,000 [37,500] | 4 [7] | 5 [8] | ||
| 5 → 6 | 30,000 [67,500] | 6 [13] | 7 [15] | |||
| 6 → 7 | 5✦ | 45,000 [112,500] | 3 [3] | 3 [3] | ||
| 7 → 8 | 80,000 [192,500] | 4 [7] | 5 [8] |  1 [1] | ||
| 8 → 9 | 6✦ | 160,000 [352,500] | 8 [16] | 1 [2] |  1 [1] | |
| 9 → 10 | 300,000 [652,500] | 14 [30] | 1 [3] | 1 [2] | ||
652,500 Credit SPD BoostSPD increases by 2 |
SPD Boost SPD increases by 4 Req. Character Lv. 80 | ||
 The Gladius of ConquestAt the start of combat, Hysilens deploys a Zone, equivalent to that provided by her Ultimate, lasting for 3 turn(s). Whenever Hysilens deploys a Zone, she recovers 1 Skill Point(s). Req. Character Ascension 2 |
 ATK BoostATK increases by 4.0% Req. Character Ascension 2 |
SPD Boost SPD increases by 2 Req. Character Ascension 3 |
 Effect Hit Rate BoostEffect Hit Rate increases by 4.0% Req. Character Ascension 3 |
 The Bubble of BanquetsWhen Hysilens uses Ultimate, if the enemy target is currently afflicted with DoT(s), all DoTs currently applied on the target will immediately produce DMG equal to 150% of their original DMG. Req. Character Ascension 4 |
SPD Boost SPD increases by 3 Req. Character Ascension 4 |
ATK Boost ATK increases by 6.0% Req. Character Ascension 5 |
SPD Boost SPD increases by 3 Req. Character Ascension 5 |
 The Fiddle of PearlsFor every 10% of Hysilens's Effect Hit Rate that exceeds 60%, increases her DMG dealt by 15%, up to a max increase of 90%. Req. Character Ascension 6 |
Effect Hit Rate Boost Effect Hit Rate increases by 6.0% Req. Character Ascension 6 | ||
| ATK Boost ATK increases by 8.0% Req. Character Lv. 75 | |||
Eidolons
| Icon | Name | Level |
|---|---|---|
 | You Ask Why Hearts Cry | 1 |
While Hysilens is on the field, the DoT dealt by ally targets is equal to 116% of their original value. When Hysilens inflicts Wind Shear/Bleed/Burn/Shock on enemies via her Talent, there is a 100% base chance to additionally inflict the target with 1 instance of Wind Shear/Bleed/Burn/Shock state that is equivalent to those from the original Talent effect and can coexist with such pre-existing states.
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 | Tell Me Why Waves Roar High | 2 |
| While the Zone is active, the DMG Boost effect from Trace "The Fiddle of Pearls" applies to all allies. | ||
 | Why Do Lights Bid Goodbye | 3 |
| Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10. | ||
 | Lo, How Time Flows By | 4 |
| While the Zone is active, reduces All-Type RES of all enemies by 20%. | ||
 | In Ablution, I Hum and Sigh | 5 |
| Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15. | ||
 | When to Return From Where You Lie | 6 |
| While the Zone is active, at the start of each turn or after one attack by an ally target, increases the maximum trigger count for Hysilens's Physical DoT effect to 12, and increases the multiplier of the DMG dealt by 20%. | ||
Achievements
There are 5 Achievements related to Hysilens:
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Name | Category | Description | Hidden | Version | 
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|---|---|---|---|---|---|---|
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Tidal Quintet | Eager for Battle | Use Hysilens's skill "Overtone Hum: Chorus After Dark Tides" to knock 5 enemy(ies) into the air | Yes | 3.5 | 5 |
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Westwind Drift | Eager for Battle | Use ally character Hysilens' Zone to additionally deal 40 instance(s) of DMG in a single battle | Yes | 3.5 | 5 |
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Bubbles Return to the Deep Sea | Eager for Battle | Win 1 battle(s) using a team that contains both Cerydra and Hysilens, with Hysilens being knocked down | Yes | 3.5 | 5 |
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Dost Thou Stand Among the Gladius? | Eager for Battle | Win 1 battle(s) using a team that contains both Cerydra and Hysilens, with Cerydra being knocked down | Yes | 3.5 | 5 |
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A Drop of the Soul Brew | The Memories We Share | Once the brewery is back in business, craft a fresh bottle of soul brew | Yes | 3.5 | 5 |
Availability
Event Warps
Hysilens has been promoted or featured with a drop-rate boost in 2 Event Warps:
| Warp | Featured | Duration | Version |
|---|---|---|---|
 Winedark Swansong 2025-08-13 |
  Hysilens |
August 13, 2025 – September 2, 2025 | 3.5 |
 Indelible Coterie 2026-02-13 |
Hysilens |
February 13, 2026 – March 3, 2026 | 4.0 |
Other Languages
Hysilens
| Language | Official Name |
|---|---|
| English | Hysilens |
| Chinese (Simplified) | 海瑟音 |
| Chinese (Traditional) | 海瑟音 |
| Japanese | セイレンス |
| Korean | 히실렌스 |
| Spanish | Hysilens |
| French | Hysilens |
| Russian | Гисиленса |
| Thai | Hysilens |
| Vietnamese | Hysilens |
| German | Hysilens |
| Indonesian | Hysilens |
| Portuguese | Hysilens |
Helektra
| Language | Official Name |
|---|---|
| English | Helektra |
| Chinese (Simplified) | 海列屈拉 |
| Chinese (Traditional) | 海列屈拉 |
| Japanese | ヘレクトラ |
| Korean | 헬렉트라 |
| Spanish | Hysirenia |
| French | Électra |
| Russian | Гелектра |
| Thai | Helektra |
| Vietnamese | Helektra |
| German | Helektra |
| Indonesian | Helektra |
| Portuguese | Helektra |
Change History
- Updates to character voice-overs:
- New voice-over for All Languages:
- "About Mydei"
- "About Castorice"
- "About Anaxa"
- "About Hyacine"
- "About Phainon"
- "About March 7th"
- "Added to Team With Mydei"
- "Added to Team With Castorice"
- "Added to Team With Anaxa"
- "Added to Team With Hyacine"
- "Added to Team With Phainon"
- "Added to Team With March 7th"
- "Added to Team With Cyrene"
- New voice-over for All Languages:
- Updates to character voice-overs:
- New voice-over for All Languages:
- "About Dan Heng • Permansor Terrae"
- "Added to Team With Dan Heng • Permansor Terrae"
- New voice-over for All Languages:
- Hysilens was released as a playable character.
- Hysilens was released as a mission-exclusive NPC.
- Hysilens was introduced as an upcoming playable character.
- Hysilens was introduced in Golden Epic Trailer — "Amphoreus' Saga of Heroes."
References
- ↑ Readable: The First Flame-Chase Journey (Fragment)
- ↑ Honkai: Star Rail (September 24, 2025). Myriad Celestia Trailer — "Amphoreus' Saga of Heroes". YouTube. Retrieved September 24, 2025.
- ↑ Relic, World-Remaking Deliverer: Deliverer's Boots of Pioneering
- ↑ Trailblaze Mission, As Tomorrow Became Yesterday: Hero, Return to Dawn in Mortality
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Honkai: Star Rail (June 17, 2025). Hysilens Character Reveal. Twitter. Retrieved June 17, 2025.
- ↑ 6.0 6.1 As I've Written, δ-me13.exe, Experiment Progress: Eternal Recurrence, Electrical Signal Sequence (Active): ApoRia432
- ↑ Trailblaze Mission, Before Their Deaths: Time, Ferry Me Through Ages
- ↑ 8.0 8.1 Honkai: Star Rail (August 2, 2025). Version 3.5 "Before Their Deaths" Special Program. YouTube. Retrieved August 2, 2025.
- ↑ Trailblaze Mission, For the Sun is Set to Die: Hero, Shatter That Woeful Effigy
Lygus: The golden blood flowing in your veins... It comes from The Blemished One, whose name is "Destruction" itself. And Amphoreus's Chrysos Heirs were, from the very beginning, fuel for the Aeon to burn the universe. - ↑ Adventure Mission, The Chrysos Maze Grand Restaurant: Chef's Arena
- ↑ 11.0 11.1 11.2 Chinese Character Reveal, Honkai: Star Rail Weibo. Retrieved June 17, 2025.
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