Honkai: Star Rail / Character

Mortenax Blade

Fire · Nihility · 5★

Honkai: Star Rail hub →

Details Upgrade costs Skills Sources

Stats & requirements

Element: Fire
Path: Nihility
Rarity: 5

Starting stats (first promotion tier)

HP: 184.8
ATK: 73.92
DEF: 66
SPD: 107
TAUNT: 100
CRIT_RATE: 0.05
CRIT_DMG: 0.5

Named skills

Starting-level values from the cited data. Coefficients describe the skill’s inputs, not final damage.

A Broken Blade Still SlaysBasic ATK / Single Target

Level 1 coefficient 1: 0.25

A Rain of Blades Seals FateSkill / AoE

Level 1 coefficient 1: 0.36
Level 1 coefficient 2: 4
Level 1 coefficient 3: 0.12
Level 1 coefficient 4: 0.1

Fornax Ex CorporeUltimate / Enhance

Level 1 coefficient 1: 0.2
Level 1 coefficient 2: 0.2
Level 1 coefficient 3: 0.3
Level 1 coefficient 4: 0.3
Level 1 coefficient 5: 70
Level 1 coefficient 6: 0.5
Level 1 coefficient 7: 0.2
Level 1 coefficient 8: 2

All Karma Comes DueTalent / Support

Level 1 coefficient 1: 9
Level 1 coefficient 2: 15

One Cut Ends All

See the source for this talent’s full effect and conditions.

Blade's Reach Spares NoneTechnique

Level 1 coefficient 1: 0.9
Level 1 coefficient 2: 2

A Tempered Blade Severs SoulsBasic ATK / Single Target

Level 1 coefficient 1: 0.5

A Rain of Blades Seals FateSkill / AoE

Level 1 coefficient 1: 0.1

Tenax Per IgnemUltimate / AoE

Level 1 coefficient 1: 2.1

Upgrade & material costs

Choose a track to see each purchased step and the total material bill. These totals cover the listed steps; character EXP and unlisted costs are separate.

Character promotion0 → 6

Total for the listed steps

Credit308,000

Whimsy Wax15

Dreamweave Steel15

Radiant Prominence65

Lucid Awl15

Step by step

Upgrade	Gate	Materials
0 → 1	Lv. 20	Credit × 4,000Whimsy Wax × 5
1 → 2	Lv. 30 / Rank 1	Credit × 8,000Whimsy Wax × 10
2 → 3	Lv. 40 / Rank 2	Credit × 16,000Dreamweave Steel × 6Radiant Prominence × 3
3 → 4	Lv. 50 / Rank 3	Credit × 40,000Dreamweave Steel × 9Radiant Prominence × 7
4 → 5	Lv. 60 / Rank 4	Credit × 80,000Lucid Awl × 6Radiant Prominence × 20
5 → 6	Lv. 70 / Rank 5	Credit × 160,000Lucid Awl × 9Radiant Prominence × 35

A Broken Blade Still Slays1 → 6

Total for the listed steps

Credit240,000

Tear of Phagousa3

Whimsy Wax6

Wine of Phagousa8

Dreamweave Steel7

Heart of Phagousa11

Lucid Awl7

Step by step

Upgrade	Gate	Materials
1 → 2		Credit × 5,000Tear of Phagousa × 3Whimsy Wax × 6
2 → 3		Credit × 10,000Wine of Phagousa × 3Dreamweave Steel × 3
3 → 4		Credit × 20,000Wine of Phagousa × 5Dreamweave Steel × 4
4 → 5		Credit × 45,000Heart of Phagousa × 3Lucid Awl × 3
5 → 6		Credit × 160,000Heart of Phagousa × 8Lucid Awl × 4

A Rain of Blades Seals Fate1 → 10

Total for the listed steps

Credit652,500

Whimsy Wax9

Tear of Phagousa3

Wine of Phagousa15

Dreamweave Steel13

Heart of Phagousa30

Lucid Awl7

Vanquished Flow's Reticence3

Tracks of Destiny2

Step by step

Upgrade	Gate	Materials
1 → 2		Credit × 2,500Whimsy Wax × 3
2 → 3		Credit × 5,000Tear of Phagousa × 3Whimsy Wax × 6
3 → 4		Credit × 10,000Wine of Phagousa × 3Dreamweave Steel × 3
4 → 5		Credit × 20,000Wine of Phagousa × 5Dreamweave Steel × 4
5 → 6		Credit × 30,000Wine of Phagousa × 7Dreamweave Steel × 6
6 → 7		Credit × 45,000Heart of Phagousa × 3Lucid Awl × 3
7 → 8		Credit × 80,000Heart of Phagousa × 5Vanquished Flow's Reticence × 1Lucid Awl × 4
8 → 9		Credit × 160,000Heart of Phagousa × 8Tracks of Destiny × 1Vanquished Flow's Reticence × 1
9 → 10		Credit × 300,000Heart of Phagousa × 14Tracks of Destiny × 1Vanquished Flow's Reticence × 1

Fornax Ex Corpore1 → 10

Total for the listed steps

Credit652,500

Whimsy Wax9

Tear of Phagousa3

Wine of Phagousa15

Dreamweave Steel13

Heart of Phagousa30

Lucid Awl7

Vanquished Flow's Reticence3

Tracks of Destiny2

Step by step

Upgrade	Gate	Materials
1 → 2		Credit × 2,500Whimsy Wax × 3
2 → 3		Credit × 5,000Tear of Phagousa × 3Whimsy Wax × 6
3 → 4		Credit × 10,000Wine of Phagousa × 3Dreamweave Steel × 3
4 → 5		Credit × 20,000Wine of Phagousa × 5Dreamweave Steel × 4
5 → 6		Credit × 30,000Wine of Phagousa × 7Dreamweave Steel × 6
6 → 7		Credit × 45,000Heart of Phagousa × 3Lucid Awl × 3
7 → 8		Credit × 80,000Heart of Phagousa × 5Vanquished Flow's Reticence × 1Lucid Awl × 4
8 → 9		Credit × 160,000Heart of Phagousa × 8Tracks of Destiny × 1Vanquished Flow's Reticence × 1
9 → 10		Credit × 300,000Heart of Phagousa × 14Tracks of Destiny × 1Vanquished Flow's Reticence × 1

All Karma Comes Due1 → 10

Total for the listed steps

Credit652,500

Whimsy Wax9

Tear of Phagousa3

Wine of Phagousa15

Dreamweave Steel13

Heart of Phagousa30

Lucid Awl7

Vanquished Flow's Reticence3

Tracks of Destiny2

Step by step

Upgrade	Gate	Materials
1 → 2		Credit × 2,500Whimsy Wax × 3
2 → 3		Credit × 5,000Tear of Phagousa × 3Whimsy Wax × 6
3 → 4		Credit × 10,000Wine of Phagousa × 3Dreamweave Steel × 3
4 → 5		Credit × 20,000Wine of Phagousa × 5Dreamweave Steel × 4
5 → 6		Credit × 30,000Wine of Phagousa × 7Dreamweave Steel × 6
6 → 7		Credit × 45,000Heart of Phagousa × 3Lucid Awl × 3
7 → 8		Credit × 80,000Heart of Phagousa × 5Vanquished Flow's Reticence × 1Lucid Awl × 4
8 → 9		Credit × 160,000Heart of Phagousa × 8Tracks of Destiny × 1Vanquished Flow's Reticence × 1
9 → 10		Credit × 300,000Heart of Phagousa × 14Tracks of Destiny × 1Vanquished Flow's Reticence × 1

Bone, Hardened ad Nauseam0 → 1

Total for the listed steps

Credit5,000

Tear of Phagousa3

Vanquished Flow's Reticence1

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 5,000Tear of Phagousa × 3Vanquished Flow's Reticence × 1

Soul, Tempered ad Mortem0 → 1

Total for the listed steps

Credit20,000

Wine of Phagousa5

Tracks of Destiny1

Vanquished Flow's Reticence1

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 20,000Wine of Phagousa × 5Tracks of Destiny × 1Vanquished Flow's Reticence × 1

Heart, Refined ad Infinitum0 → 1

Total for the listed steps

Credit160,000

Heart of Phagousa8

Tracks of Destiny1

Vanquished Flow's Reticence1

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 160,000Heart of Phagousa × 8Tracks of Destiny × 1Vanquished Flow's Reticence × 1

DMG Boost: Fire0 → 1

Total for the listed steps

Credit2,500

Whimsy Wax2

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 2,500Whimsy Wax × 2

CRIT Rate Boost0 → 1

Total for the listed steps

Credit5,000

Tear of Phagousa3

Whimsy Wax6

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 5,000Tear of Phagousa × 3Whimsy Wax × 6

DMG Boost: Fire0 → 1

Total for the listed steps

Credit10,000

Wine of Phagousa3

Dreamweave Steel3

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 10,000Wine of Phagousa × 3Dreamweave Steel × 3

HP Boost0 → 1

Total for the listed steps

Credit10,000

Wine of Phagousa3

Dreamweave Steel3

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 10,000Wine of Phagousa × 3Dreamweave Steel × 3

DMG Boost: Fire0 → 1

Total for the listed steps

Credit20,000

Wine of Phagousa5

Dreamweave Steel4

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 20,000Wine of Phagousa × 5Dreamweave Steel × 4

CRIT Rate Boost0 → 1

Total for the listed steps

Credit45,000

Heart of Phagousa3

Lucid Awl3

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 45,000Heart of Phagousa × 3Lucid Awl × 3

DMG Boost: Fire0 → 1

Total for the listed steps

Credit45,000

Heart of Phagousa3

Lucid Awl3

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 45,000Heart of Phagousa × 3Lucid Awl × 3

HP Boost0 → 1

Total for the listed steps

Credit160,000

Heart of Phagousa8

Lucid Awl8

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 160,000Heart of Phagousa × 8Lucid Awl × 8

CRIT Rate Boost0 → 1

Total for the listed steps

Credit160,000

Heart of Phagousa8

Lucid Awl8

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 160,000Heart of Phagousa × 8Lucid Awl × 8

DMG Boost: Fire0 → 1

Total for the listed steps

Credit160,000

Heart of Phagousa8

Lucid Awl8

Step by step

Upgrade	Gate	Materials
0 → 1		Credit × 160,000Heart of Phagousa × 8Lucid Awl × 8

Sources & image credit

Reference snapshot: 24 October 2026.

HoYoverse / COGNOSPHERE

REFERENCE INDEX

All character entries →Read about Honkai: Star Rail →

Honkai: Star Rail

March 7th makes the Astral Express feel like a found family

March 7th turns a crew of travelers into something warmer than a transportation service. Her bright camera, chosen name, and curiosity about a lost past make the Astral Express feel like a home being assembled one shared moment at a time.

Character analysis · 3 min

Honkai: Star Rail

Dan Heng's reserve makes room for the Trailblazer's questions

Dan Heng’s quiet presence on the Astral Express can seem like a refusal to engage. In the early journey, though, his archive work and measured responses make him a steady guide: someone who gives the Trailblazer room to ask without turning every answer into a performance.

Character analysis · 3 min

Honkai: Star Rail

Jarilo-VI builds its conflict above and below ground

Jarilo-VI gives its central divide a physical shape. Belobog’s exposed streets and the Underworld’s constrained spaces make the distance between communities tangible, so the planet’s conflict is encountered through movement and perspective as much as through explanation.

Story analysis · 3 min

Honkai: Star Rail

March 7th, Dan Heng, Natasha: three turns and one Skill Point pool

Skill Points turn a party’s separate turns into a shared planning problem. Understanding when a basic attack can carry the next moment, when a skill deserves the resource, and how ultimates fit around that choice makes ordinary battles easier to read.

Game guide · 4 min

Stats & requirements

Starting stats (first promotion tier)

Named skills

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Sources & image credit

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