Introductions
Mortenax Blade is a 5-Star character with the Fire
element who follows the Path of Nihility.
This page covers Mortenax Blade's Skills, Traces, Eidolons, and ascension stats.
Body like spring wood, heart like dead ash. Yet embers of a craftsman's spark still linger at his 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 answer will it create?
Mortenax Blade's Strengths & Weaknesses
Strengths
Incredibly supportive, revitalizing older units such as Acheron and Feixiao.
Strong supportive damage capabilities, despite boasting high personal damage.
Strong survivability skills, despite dependence on sustaining.
Incredibly flexible.
Weaknesses
Strongly wants a healer to function in his "Infinite Fury" state.
Limited Light Cone options, forcing players to trade either personal damage for DMG amplification unless his Signature is equipped.
Skills
Basic ATK
A Broken Blade Still Slays
Single Target
Lv. 6
Energy gain: 20
Deals Fire DMG equal to 50.0% of Mortenax Blade's Max HP to one designated enemy, and causes the target to enter the Taunt state for 1 turn.
Skill
A Rain of Blades Seals Fate
AoE
Lv. 10
Energy gain: 30
Consumes HP equal to 10.0% of Mortenax Blade's Max HP and deals Fire DMG equal to 72.0% of Mortenax Blade's Max HP to all enemies. If the current HP is insufficient, current HP will be reduced to 1. Additionally deals 4 instance(s) of DMG, with each instance dealing Fire DMG equal to 24.0% of Mortenax Blade's Max HP to one random enemy.
When not in the "Infinite Fury" state or when current HP is 1 or lower, Mortenax Blade cannot use his Skill.
Using Skill does not consume Skill Points.
Ultimate
Fornax Ex Corpore
Enhance | 80 energy cost
Lv. 10
Energy gain: 5
Inflicts "Balefire Bind" on all enemies. Enemy targets in the "Balefire Bind" state have their DEF reduced by 30.0% and DMG received increased by 50.0%, lasting for 2 turn(s). Then, consumes HP equal to 20.0% of Mortenax Blade's Max HP to deploy a Zone. While the Zone is active, Mortenax Blade enters the "Infinite Fury" state.
While in the "Infinite Fury" state, CRIT Rate increases by 20.0% and CRIT DMG increases by 60.0%, unlocks his Skill, and gains a new Ultimate "Tenax Per Ignem." When receiving a killing blow, this unit will not be knocked down, but will dispel the Zone, exit the "Infinite Fury" state, and restore HP equal to 50.0% of this unit's Max HP.
When entering the "Infinite Fury" state, a corresponding countdown appears on the Action Order. The countdown has a fixed SPD of 70. At the start of the countdown's turn, dispels the Zone and exits the "Infinite Fury" state.
If the current HP is insufficient, Mortenax Blade's current HP will be reduced to 1 when using this ability.
Talent
All Karma Comes Due
Support
Lv. 10
Energy gain: -
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 Mortenax Blade's current HP is more than 1, Mortenax Blade consumes 9 Charge points, regenerates 25 Energy, and uses his Skill 1 extra time. This extra Skill usage is considered as a Follow-Up ATK.
Technique
Blade's Reach Spares None
Energy gain: -
Immediately attacks all enemies within range. After entering combat, Taunts the target for 1 turn and decreases DMG taken by this unit by 90.0% for 2 turn(s).
Basic ATK
A Tempered Blade Severs Souls
Single Target
Lv. 6
Energy gain: 20
Deals Fire DMG equal to 100% of Mortenax Blade's Max HP to one designated enemy, and causes the target to enter the Taunt state for 1 turn.
Ultimate
Tenax Per Ignem
AoE | 80 energy cost
Lv. 10
Energy gain: 5
Deals Fire DMG equal to 350.0% of Mortenax Blade's Max HP to all enemies.
Major Traces
Bone, Hardened ad Nauseam
A2
Major trace
Mortenax Blade can accumulate up to 80 Energy overflow. After using Ultimate, the Energy overflow is cleared and a corresponding amount of Energy is regenerated. When the battle starts or when the Zone is dispelled, if Energy is below 50.0%, it is immediately regenerated to 50.0%.
Soul, Tempered ad Mortem
A4
Major trace
While the Zone is active, increases the chance of being attacked by enemies, decreases DMG taken by this unit by 50.0%, and increases Incoming Healing by 50.0%. After being attacked, inflicts the "Balefire Bind" state on the attacker, and Mortenax Blade gains 1 Charge.
Heart, Refined ad Infinitum
A6
Major trace
While the Zone is active, DMG dealt by ally targets increases by 50.0%. If there are other Nihility characters aside from Mortenax Blade in the ally team, Ultimate DMG dealt by ally targets increases by 75.0%. Otherwise, DMG dealt by Mortenax Blade additionally increases by 75.0%.
Minor Traces
Fire DMG Boost
CRIT Rate
HP
Eidolons
E1
Ere My Death, I Stood Unmade
Eidolon 1
While the Zone is active, decreases all enemies' All-Type RES by 20.0%. After using the extra Skill from Talent, the "Infinite Fury" countdown has its action delayed by 15.0%.
E2
Ash Was My Heart, Yet the Flame Stayed
Eidolon 2
When an ally character deals DMG by using their Ultimate, it is considered as having launched a Follow-Up ATK. The Follow-Up ATK DMG dealt by ally targets increases by 75.0%.
E3
Across the Shore, Wrath Laid Bare
Eidolon 3
Ultimate Lv. +2, up to a maximum of Lv. 15.
Talent Lv. +2, up to a maximum of Lv. 15.
E4
Odium I've Smitten, Thence Came the Blade
Eidolon 4
"Heart, Refined ad Infinitum" additionally increases ally targets' DMG dealt by 50.0%.
E5
I Severed My Woes, Knowing Death Begets Life
Eidolon 5
Skill Lv. +2, up to a maximum of Lv. 15.
Basic ATK Lv. +1, up to a maximum of Lv. 10.
E6
If Immortality Could Die, I Swore THEM Slain
Eidolon 6
While the Zone is active, when Mortenax Blade takes DMG or consumes HP, he gains 1 Charge. This effect can be triggered again after any target's turn ends. The DMG multiplier of "Tenax Per Ignem" increases to 150.0% of the original multiplier.
Stats and Ascension Materials
Base Stats
HP
ATK
DEF
SPDAscension Materials
Credits
308000
Whimsy Wax
15
Dreamweave Steel
15
Radiant Prominence
65
Lucid Awl
15
Mortenax Blade Voice Actors
EN
Daman Mills
JP
Miki Shin-ichiro
CN
Liu Yijia
KR
Kwak Yoon-sang
1.
Changelog
- 10 May 2026: Page and Skills for Mortenax Blade added.
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