Mortenax Blade
Last updated 2026-06-29
Mortenax Blade is a playable character in Honkai: Star Rail.
A body like spring wood, a heart like dead ashes, yet the sparks of a craftsman still linger at the fingertips. As ancient grudges are ignited once more, he promises to send both himself and the gods to the other side...
Torn flesh, tempered a thousand times into a blade... what kind of answer will it forge?[7]
Combat Info
Ascensions and Stats
| Ascension Phase | Level | Base HP | Base ATK | Base DEF | Base SPD | Ascension Costs |
|---|---|---|---|---|---|---|
| 0✦ | 1/20 | 184 | 73 | 66 | 107 | (0 → 1) |
| 20/20 | 360 | 144 | 128 | 107 | ||
| Ascension Cost (0 → 1) | ||||||
| 1✦ | 20/30 | 434 | 173 | 155 | 107 | (1 → 2) |
| 30/30 | 526 | 210 | 188 | 107 | ||
| Ascension Cost (1 → 2) | ||||||
| 2✦ | 30/40 | 600 | 240 | 214 | 107 | (2 → 3) |
| 40/40 | 693 | 277 | 247 | 107 | ||
| Ascension Cost (2 → 3) | ||||||
| 3✦ | 40/50 | 766 | 306 | 273 | 107 | (3 → 4) |
| 50/50 | 859 | 343 | 306 | 107 | ||
| Ascension Cost (3 → 4) | ||||||
| 4✦ | 50/60 | 933 | 373 | 333 | 107 | (4 → 5) |
| 60/60 | 1,025 | 410 | 366 | 107 | ||
| Ascension Cost (4 → 5) | ||||||
| 5✦ | 60/70 | 1,099 | 439 | 392 | 107 | (5 → 6) |
| 70/70 | 1,191 | 476 | 425 | 107 | ||
| Ascension Cost (5 → 6) | ||||||
| 6✦ | 70/80 | 1,265 | 506 | 452 | 107 | — |
| 80/80 | 1,358 | 543 | 485 | 107 | ||
308,000 Credit
15 Whimsy Wax
15 Lucid AwlAbilities
| Icon | Type | Name | Tag | Energy | Toughness Reduction | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | Basic ATK | A Broken Blade Still Slays | Single Target | Generation: 20 | 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Deals Fire DMG equal to 25%-55% of Mortenax Blade's Max HP to one designated enemy, and causes the target to enter the Taunt state for 1 turn.
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 | Basic ATK | A Tempered Blade Severs Souls | Single Target | Generation: 20 | 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Deals Fire DMG equal to 50%-110% of Mortenax Blade's Max HP to one designated enemy, and causes the target to enter the Taunt state for 1 turn.
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 | Skill | A Rain of Blades Seals Fate | AoE | Cost: 10% HP Generation: 30 | 10 (AoE) 5 (Per Bounce) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Consumes HP equal to 10% of Mortenax Blade's Max HP and deals Fire DMG equal to 36%-79.2% of Mortenax Blade's Max HP to all enemies, and additionally deals 4 instance(s) of DMG, with each instance dealing Fire DMG equal to 12%-26.4% of Mortenax Blade's Max HP to one random enemy.
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 | Ultimate | Fornax Ex Corpore | Enhance | Cost: 160 Generation: 5 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Inflicts "Balefire Bind" on all enemies. Enemy targets in the "Balefire Bind" state have their DEF reduced by 20%-32% and the DMG they receive increases by 30%-54%, lasting for 2 turn(s). Then, consumes HP equal to 20% of Mortenax Blade's Max HP to deploy a Zone. While the Zone is active, Mortenax Blade enters the "Infinite Fury" state.
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 | Ultimate | Tenax Per Ignem | AoE | Cost: 160 Generation: 5 | 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Deals Fire DMG equal to 210%-378% of Mortenax Blade's Max HP to all enemies.
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 | Talent | All Karma Comes Due | Support | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
While the Zone is active, after each attack an ally target uses on an enemy, inflicts the "Balefire Bind" state on the corresponding enemy target and grants 1 Charge to Mortenax Blade. When Charge reaches 9 points and the current HP is more than 1, consumes 9 Charge, regenerates 15-27 Energy, and enables Mortenax Blade to use Skill 1 extra time. This extra Skill use is considered as Follow-Up ATK.
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 | Technique | Blade's Reach Spares None | 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Immediately attacks all enemies within a certain range. After entering combat, inflicts the Taunt state on all enemies for 1 turn and decreases DMG taken by this unit by 90% for 2 turn(s). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 DMG Boost: FireFire DMG increases by 3.2% |
DMG Boost: Fire Fire DMG increases by 6.4% Req. Character Lv. 80 | ||
 Bone, Hardened ad NauseamMortenax Blade can accumulate up to 80 overflow Energy. After using Ultimate, clears it and regenerates a corresponding amount of Energy. When the battle starts or when the Zone is dispelled, if Energy is below 75%, it is immediately regenerated to 75%. When Energy is regenerated to its maximum, dispels all debuffs from this unit. Req. Character Ascension 2 |
 CRIT Rate BoostCRIT Rate increases by 2.7% Req. Character Ascension 2 |
DMG Boost: Fire Fire DMG increases by 3.2% Req. Character Ascension 3 |
 HP BoostMax HP increases by 4.0% Req. Character Ascension 3 |
 Soul, Tempered ad MortemWhile the Zone is active, increases the chance of being attacked by enemies, decreases DMG taken by this unit by 50%, and increases Incoming Healing by 50%. After being attacked, inflicts the "Balefire Bind" state on the corresponding target, and enables Mortenax Blade to gain 1 Charge. Req. Character Ascension 4 |
DMG Boost: Fire Fire DMG increases by 4.8% Req. Character Ascension 4 |
CRIT Rate Boost CRIT Rate increases by 4.0% Req. Character Ascension 5 |
DMG Boost: Fire Fire DMG increases by 4.8% Req. Character Ascension 5 |
 Heart, Refined ad InfinitumWhile the Zone is active, ally targets deal 50% increased DMG. If there are other Nihility characters aside from Mortenax Blade in the team, Ultimate DMG dealt by ally targets increases by 75%. Otherwise, DMG dealt by Mortenax Blade additionally increases by 75%. Req. Character Ascension 6 |
HP Boost Max HP increases by 6.0% Req. Character Ascension 6 | ||
| CRIT Rate Boost CRIT Rate increases by 5.3% Req. Character Lv. 75 | |||
Eidolons
| Icon | Name | Level |
|---|---|---|
 | Ere My Death, I Stood Unmade | 1 |
| While the Zone is active, decreases all enemies' All-Type RES by 20%. After using the extra Skill from Talent, the "Infinite Fury" countdown has its action delayed by 15%. | ||
 | Ash Was My Heart, Yet the Flame Stayed | 2 |
| When an ally character uses Ultimate to deal DMG, it is considered as having launched Follow-Up ATK. And the Follow-Up ATK DMG dealt by ally targets increases by 75%. The upper limit of Mortenax Blade's Charge decreases to 7. | ||
 | Across the Shore, Wrath Laid Bare | 3 |
| Ultimate Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15. | ||
 | Odium I've Smitten, Thence Came the Blade | 4 |
| "Heart, Refined ad Infinitum" additionally increases ally targets' DMG dealt by 50%. | ||
| I Severed My Woes, Knowing Death Begets Life | 5 |
| Skill Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10. | ||
 | If Immortality Could Die, I Swore THEM Slain | 6 |
| As the Zone persists, when Mortenax Blade takes DMG or consumes HP, he gains 1 Charge. This effect can trigger again after any target's turn ends. The DMG multiplier of "Tenax Per Ignem" increases to 150% of its original value. | ||
Achievements
There are 3 Achievements related to Mortenax Blade:
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Name | Category | Description | Hidden | Version | 
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|---|---|---|---|---|---|---|
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Forge Everlasting, Warriors Forged | Eager for Battle | When winning the battle, Mortenax Blade's remaining HP is 1. | Yes | 4.3 | 5 |
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Clash of Blades, Ring of Hammers, Each Note a Testament | Eager for Battle | In a single turn, use ally character Mortenax Blade to trigger "A Rain of Blades Seals Fate" a total of 4 time(s) | Yes | 4.3 | 5 |
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Eternal Condemnation | Eager for Battle | Have ally character Mortenax Blade use "Tenax Per Ignem" 6 time(s) during a single activation of the "Infinite Fury" state | Yes | 4.3 | 5 |
Availability
Event Warps
Mortenax Blade has been promoted or featured with a drop-rate boost in 1 Event Warp:
| Warp | Featured | Duration | Version |
|---|---|---|---|
 Now I Am Become Blade 2026-06-01 |
  Mortenax Blade |
June 1, 2026 – June 24, 2026 | 4.3 |
Other Languages
| Language | Official Name |
|---|---|
| English | Mortenax Blade |
| Chinese (Simplified) | 千冶•刃 |
| Chinese (Traditional) | 千冶•刃 |
| Japanese | 千冶・刃 |
| Korean | 천야•블레이드 |
| Spanish | Mortenax Blade |
| French | Blade Mortenax |
| Russian | Мортенакс Блэйд |
| Thai | ผู้ฝ่าบ่วงมฤตยู Blade |
| Vietnamese | Mortenax Blade |
| German | Mortenax Blade |
| Indonesian | Mortenax Blade |
| Portuguese | Mortenax Blade |
Change History
- Mortenax Blade was released as a playable character.
- Mortenax Blade was introduced as an upcoming playable character.
- Mortenax Blade was introduced in Planarcadia's Previews.
References
- ↑ Honkai: Star Rail (January 15, 2026). Ready to Become Aha?. Twitter. Retrieved January 15, 2026.
- ↑ Trailblaze Mission, Farewell, Penacony: Soldier's Pay
Jade: I wonder what they are like, and if all Stellaron Hunters are like you... Traveling on the Path of Finality but struggling against your destiny, attempting to move in the opposite direction? - ↑ Trailblaze Mission, Heroic Saga of Flame-Chase: Night Veil, Shroud the Silent Past
- ↑ Companion Mission, Vita Infinita: Clouds Leave No Trace
- ↑ Daman Mills (April 7, 2026). EN VA Self Announcement. Twitter. Retrieved April 7, 2026.
- ↑ 6.0 6.1 6.2 崩坏星穹铁道 (April 7, 2026). Mortenax Blade Chinese Character Reveal. Bilibili. Retrieved April 7, 2026.
- ↑ 7.0 7.1 Honkai: Star Rail (April 7, 2026). Mortenax Blade Character Reveal. Twitter. Retrieved April 7, 2026.
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