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Builds

Indicates important notes found below.

Light Cones

Highlighted Light Cones are free options.

1(5★) [S1]
≈(5★) [S1]
2(4★) [S5]
3(4★) [S5]
4(4★) [S5]
5(4★) [S5]

Relics

Relic Sets
1
 (4)
2
ⓘ (4)
3
ⓘ (4)
Planar Ornaments
1
ⓘ (2)
≈
 (2)

Relic Stats

Main Stats

BodyCRIT Rate
FeetSPD / HP%
Planar SphereHP% / Fire DMG Boost
Link RopeEnergy Regeneration Rate / HP%

Substats

1SPD
2CRIT Rate
3CRIT DMG
4HP%

Traces

1Ultimate
2Talent
3Skill
4Basic ATKⓘ

Notes

(4) / (2): Are best used if you want more of his supportive capabilities while sacrificing a bit of his personal damage.
(4): Viable set for sustainless runs.
SPD: E0: 140+, E1: 134+, E2: Base SPD or 134.
CRIT Rate: Mortenax Blade self buffs 20% CRIT Rate.
Basic ATK: Basic ATK can be ignored.

Overview

Summary and General Analysis

  • A Support/Sub-DPS unit with extremely strong buffs provided through his Ultimate's "Zone" effect.
  • This "Zone" reduces enemy DEF while providing Vulnerability, 50% teamwide DMG%, and either 75% Ultimate DMG% or 75% self DMG% if he is the sole Nihility character on the team. Enemy attacks will cause them to be debuffed, granting Blade "Charges" for his Follow-Up ATK. It also buffs his own CRIT Rate and CRIT DMG, increasing his personal damage potential. While the "Zone" is active, increases his Incoming Healing and decreases DMG taken for himself.
  • Due to his very broad amplifications, he can slot into any team and opens up the possibility of sustainless gameplay through his "Taunt" increase.

Investment Priority

E2 > E1 > S1

  • E2 allows any ally's Ultimate to be considered a Follow-Up ATK. It also increases the damage of Follow-Up ATKs while lowering the charges required for his own Follow-Up ATK. This E2 is the single largest boost for any team with Ashveil, since now any Ultimate will have his Follow-Up ATK buffs.
  • E1 reduces All-Type RES of all enemies by 20%. It also delays the countdown on his Ultimate every time Mortenax Blade uses his Follow-Up ATK, allowing for more uptime on his "Zone".
  • S1 has the highest HP values of any Nihility light cones, allows a first-turn Ultimate for himself, but lacks value for teamwide damage amplification. S1 has higher value if you choose to use him as the carry of the team.

Character Info

Level 80 Stats

HP1358ATK543DEF485SPD107Energy160

Abilities

Basic ATKA Broken Blade Still SlaysLv. 6

Type: Single Target

Energy Gain: 20Toughness Reduction: 10
Trace LevelLv. 6
Lv. 1Lv. 7

Deals Fire DMG equal to 50% of Mortenax Blade's Max HP to one designated enemy, and causes the target to enter the Taunt state for 1 turn.

Enhanced Basic ATKA Tempered Blade Severs Souls

Type: Single Target

Energy Gain: 20Toughness Reduction: 10

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.

SkillA Rain of Blades Seals FateLv. 10

Type: AoE

Energy Gain: 30Toughness Reduction (AoE): 10Toughness Reduction (Per Bounce): 5Toughness Reduction (Total): 30
Trace LevelLv. 10
Lv. 1Lv. 12

Consumes HP equal to 10% of Mortenax Blade's Max HP and deals Fire DMG equal to 72% 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 24% 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.

UltimateFornax Ex CorporeLv. 10

Type: Enhance

Energy Gain: 5Energy Cost: 160
Trace LevelLv. 10
Lv. 1Lv. 12

Inflicts "Balefire Bind" on all enemies. Enemy targets in the "Balefire Bind" state have their DEF reduced by 30% and the DMG they receive increases by 50%, 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. During the "Infinite Fury" state, increases CRIT Rate by 20%, increases CRIT DMG by 60%, 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 50% 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 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 he uses this ability.

UltimateTenax Per Ignem

Type: AoE

Energy Gain: 5Energy Cost: 160Toughness Reduction (AoE): 20

Deals Fire DMG equal to 350% of Mortenax Blade's Max HP to all enemies.

TalentAll Karma Comes DueLv. 10

Type: Support

Trace LevelLv. 10
Lv. 1Lv. 12

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 25 Energy, and enables Mortenax Blade to use Skill 1 extra time. This extra Skill use is considered as Follow-Up ATK.

TechniqueBlade's Reach Spares None
Toughness Reduction: 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).

Ascension Traces

Major Traces

A2Major TraceBone, Hardened ad Nauseam

Mortenax 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.

A4Major TraceSoul, Tempered ad Mortem

While 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.

A6Major TraceHeart, Refined ad Infinitum

While 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%.

Stat Bonuses

HP+10%CRIT Rate+12%Fire DMG+22.4%

Eidolons

Eidolons

E1Ere 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%.

E2Ash 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.

E3Across 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.

E4Odium I've Smitten, Thence Came the Blade

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

E5I 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.

E6If 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.