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Mortenax Blade

Mortenax BladeFire

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NihilityNihility

Find the best builds and teams for Mortenax Blade in Honkai: Star Rail, including recommended Light Cones, Relics, and team compositions.

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?

Debuffer Build

Mortenax Blade Best Stats

Body: CRIT Rate
Feet: SPD
Sphere: HP%Fire DMG
Rope: Energy Regen

Mortenax Blade Best Substats

CRIT Rate
starstarstar
CRIT DMG
starstarstar
SPD
starstar
HP%
starstar

Mortenax Blade Best Teams

Mortenax Blade Hypercarry (Acheron)

F2P hypercarry team with Acheron as main DPS. Mortenax Blade provides debuffs and damage amplification, Welt adds support and crowd control, and Permansor Terrae sustains the party.

Mortenax Blade Hypercarry (Archer)

F2P hypercarry team with Archer as main DPS. Mortenax Blade debuffs enemies while Sparkle buffs and advances the DPS. Permansor Terrae provides sustain.

Mortenax Blade Hypercarry (Ashveil)

F2P hypercarry team with Ashveil as main DPS. Mortenax Blade increases enemy damage taken, Robin provides team-wide buffs, and Permansor Terrae keeps the team alive.

Mortenax Blade Hypercarry (The Herta)

F2P hypercarry/dual DPS team with The Herta as main DPS and a flexible Erudition sub-DPS/Support. Mortenax Blade debuffs, Permansor Terrae sustains.

Mortenax Blade Beginner Team

Beginner-friendly team using only accessible characters. Mortenax Blade acts as debuffer/DPS, March 7th increases SPD and deals damage, Asta buffs SPD/ATK, and Lynx sustains.

Mortenax Blade Nihility Team

Mostly Nihility team with Acheron as main DPS. Mortenax Blade and Welt provide debuffs and delay, with Ashveil as a flex slot. Can be played sustainless or with a sustain character.

Mortenax Blade Follow-Up ATK Team

Follow-Up ATK team with Ashveil as main DPS. Mortenax Blade's talent counts as Follow-Up ATK, triggering Ashveil and Tribbie. Permansor Terrae sustains and can be replaced by other frequent-attacking sustain units.

Skills

A Broken Blade Still Slays
A Broken Blade Still Slays
Basic ATK
Single Target

Deals Fire DMG equal to #1[i]% of Mortenax Blade's Max HP to one designated enemy, and causes the target to enter the Taunt state for 1 turn.

A Rain of Blades Seals Fate
A Rain of Blades Seals Fate
Skill
AoE

Consumes HP equal to #4[f1]% of Mortenax Blade's Max HP and deals Fire DMG equal to #1[i]% of Mortenax Blade's Max HP to all enemies, and additionally deals #2[i] instance(s) of DMG, with each instance dealing Fire DMG equal to #3[f1]% of Mortenax Blade's Max HP to one random enemy. If the current HP is insufficient, Mortenax Blade's current HP will be reduced to 1 when he uses Skill. While not in the "Infinite Fury" state or when the current HP is 1 or lower, Mortenax Blade cannot use his Skill. Using Skill does not consume Skill Points.

Fornax Ex Corpore
Fornax Ex Corpore
Ultimate
Enhance

Inflicts "Balefire Bind" on all enemies. Enemy targets in the "Balefire Bind" state have their DEF reduced by #7[f1]% and the DMG they receive increases by #4[f1]%, lasting for #8[i] turn(s). Then, consumes HP equal to #1[i]% of Mortenax Blade's Max HP to deploy a Zone. While the Zone is active, Mortenax Blade enters the "Infinite Fury" state. During the "Infinite Fury" state, increases CRIT Rate by #2[i]%, increases CRIT DMG by #3[f1]%, enhances Basic ATK, unlocks 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 #6[i]% of this unit's Max HP. When gaining the "Infinite Fury" state, a corresponding countdown appears on the Action Order. The countdown has a fixed SPD of #5[i]. 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 he uses this ability.

Downed State

An ally will be incapacitated once their HP is reduced to 0.

All Karma Comes Due
All Karma Comes Due
Talent
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 #1[i] points and the current HP is more than 1, consumes #1[i] Charge, regenerates #2[f1] Energy, and enables Mortenax Blade to use Skill 1 extra time. This extra Skill use is considered as Follow-Up ATK.

Follow-Up ATK

Unleashes an extra attack on the target. This effect is triggered automatically when requirements are met.

Traces

Eidolons

Ere My Death, I Stood Unmade
Ere My Death, I Stood Unmade

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%.

Delay Action

Increases the target's waiting interval before the next action.

Ash Was My Heart, Yet the Flame Stayed
Ash Was My Heart, Yet the Flame Stayed

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.

Follow-Up ATK

Unleashes an extra attack on the target. This effect is triggered automatically when requirements are met.

Across the Shore, Wrath Laid Bare
Across the Shore, Wrath Laid Bare

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
Odium I've Smitten, Thence Came the Blade

"Heart, Refined ad Infinitum" additionally increases ally targets' DMG dealt by 50%.

I Severed My Woes, Knowing Death Begets Life
I Severed My Woes, Knowing Death Begets Life

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
If Immortality Could Die, I Swore THEM Slain

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.

Stats

hpHP
1358
atkATK
543
defDEF
485
speedSPEED
107

Frequently Asked Questions

What is the best Light Cone for Mortenax Blade?

The best Light Cone for Mortenax Blade is Reforged in Hellfire.

What are the best Relics for Mortenax Blade?

The best Relic set for Mortenax Blade is Divine-Querying Master Smith.

What are the best main stats for Mortenax Blade?

The best main stats for Mortenax Blade are Body, Feet, Sphere, and Rope.

What are the best teams for Mortenax Blade?

The best teams for Mortenax Blade include strong synergies with characters that complement their Nihility path and Fire combat type.