gamekeys.deals

Buying guides

Best Mortenax Blade Build, Team and Eidolons HSR 2026

I’ve put together the Light Cones, Relics, Trace priority, stat priority, teams, and Eidolon verdicts for the best Mortenax Blade build in Honkai Star Rail,…

gamekeys.deals logo

I’ve put together the Light Cones, Relics, Trace priority, stat priority, teams, and Eidolon verdicts for the best Mortenax Blade build in Honkai Star Rail, plus the exact ascension and trace material costs so you know what to farm before pushing him in levels.

He’s a 5-star character on the Path of Nihility who spends his own HP to deploy a Zone, then buffs his team’s damage while inflicting Balefire Bind, a DEF-shred and damage-taken debuff, on every enemy he touches.

TL;DR – Best Mortenax Blade Build at a Glance

Best Light Cone Reforged in Hellfire Best F2P Light Cone Alternative Before the Tutorial Mission Starts Best Relic Set Divine-Querying Master Smith (4pc)

Best Planar Ornament Set Sprightly Vonwacq (2pc)

Main Stats Body:

CRIT Rate Boots:

SPD Planar Sphere:

HP% Link Rope:

Energy Regeneration Rate Substat priority CRIT Rate = CRIT DMG > SPD > HP% Best team (Overall)

Mortenax Blade (Hybrid)

Ashveil (DPS)

Tribbie (Support)

Hyacine (Support)

Best team (F2P)

Mortenax Blade (Hybrid)

Dr. Ratio (DPS)

Welt (Support)

Gallagher (Support)

How to Play Mortenax Blade: Rotation and Tips

Mortenax Blade’s rotation opens with his Technique, Blade’s Reach Spares None, before combat starts, which taunts every enemy and softens incoming damage for a few turns. Once the fight begins, his Ultimate, Fornax Ex Corpore, is the crux of his kit – it inflicts the Balefire Bind debuff (lower DEF, higher damage taken) on every enemy, then spends a chunk of his own Max HP to deploy a Zone.

Inside that Zone, he enters Infinite Fury, gaining bonus CRIT stats and unlocking an enhanced Basic ATK plus a free-to-use Skill that costs no Skill Points.

His Talent, All Karma Comes Due, builds Charge every time an ally lands a hit while the Zone is active. At 9 Charge, he automatically fires an extra Skill that counts as a Follow-Up ATK, which is exactly what makes him such an excellent teammate alongside other Follow-Up attackers like Ashveil and Himeko Nova.

Since his Skill and Ultimate both cost his own HP, keeping his Max HP stat high is part of his core rotation.

Guides written and checked by the gamekeys.deals team against our own price data and the stores' published policies.

How we check prices

Last reviewed