Blade • Mortenax Best Build Guide

Last updated: 29/May/2026

Introduction

Best guide and build for Blade • Mortenax from HSR (Honkai: Star Rail). Blade • Mortenax is a 5★ character from the Fire element who follows the Path of Nihility.

To learn more about Blade • Mortenax check the sections below. Use the tabs to quickly switch to the kind of information you're looking for - kit, traces, review or build guides.

Kit

Review

Build and teams

MoC/PF/AS Statistics

Calculations

Skills

Major Traces

A2Major trace

Bone, Hardened ad Nauseam

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 75%, it is immediately regenerated to 75%.

A4Major trace

Soul, 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 attacker, and Mortenax Blade gains 1 Charge.

A6Major trace

Heart, Refined ad Infinitum

While the Zone is active, DMG dealt by ally targets increases by 50%. If there are other Nihility characters aside from Mortenax Blade in the ally team, Ultimate DMG dealt by ally targets increases by 75%. Otherwise, DMG dealt by Mortenax Blade additionally increases by 75%.

Minor Traces (total)

HP%

+10%

CRIT Rate

+12%

Fire DMG

+22.4%

Eidolons

Ere My Death, I Stood Unmade

Eidolon 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

Eidolon 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

Eidolon 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

Eidolon 4

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

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.

If Immortality Could Die, I Swore THEM Slain

Eidolon 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.

Stats and materials

Blade • Mortenax Stats and Materials aren't available yet. They will be added when the character is released.

ENG

Daman Mills

JPN

Miki Shinichiro (三木眞一郎)

Liu Yijia (刘以嘉)

Kwak Yoon-sang (곽윤상)

Gallery

Blade • Mortenax images aren't available yet. They will be added when the character is released.

Review

Review for Blade • Mortenax is not available yet. It will be added when the character is released.

Build and teams

Build recommendations and team compositions for Blade • Mortenax are not available yet. They will be added when the character is released.

MoC/PF/AS Statistics

Blade • Mortenax Memory of Chaos stats aren't available yet.

Character-specific calculator for Blade • Mortenax is not available yet.

Loading content...