Honkai: Star Rail character guide

Mortenax Blade Best Build

A Fire Nihility attacker who converts debuffs and self-inflicted risk into sustained pressure.

Mortenax Blade build overview

Mortenax Blade is a Fire Nihility character commonly used for debuffer, dot dps, fire dmg. Mortenax Blade's build supports debuffer, dot dps, fire dmg while keeping the team rotation reliable.

Use Pioneer Diver of Dead Waters as the primary Relic set and Revelry by the Sea as the Planar Ornament. Recommended main stats are Effect Hit Rate / CRIT, SPD, Fire DMG, ATK%. Mortenax Blade should meet the listed Speed, Effect Hit Rate or Break Effect target first. Then improve the main scaling stats.

Light Cones and alternatives

The End Etched in Steel is the premium Light Cone because its passive is designed around Mortenax Blade's core mechanics. Mortenax Blade can use the listed Light Cones when their passives match the team rotation. Good Night and Sleep Well and Eyes of the Prey For Mortenax Blade, keep the Relic setup with stronger main stats and useful substats.

Recommended teams

  • Premium team: Mortenax Blade, Kafka, Ruan Mei, Huohuo. This formation keeps Mortenax Blade in the core role while covering damage amplification, turn economy and sustain.
  • Alternative team: Acheron, Mortenax Blade, Jiaoqiu, Aventurine. This formation keeps Mortenax Blade in the core role while covering damage amplification, turn economy and sustain.
  • Accessible team: Mortenax Blade, Guinaifen, Asta, Gallagher. This formation keeps Mortenax Blade in the core role while covering damage amplification, turn economy and sustain.

Mortenax Blade's team swaps should keep the required debuffs or damage effects without breaking Skill Point flow.

Trace priority

  • Lower priority: Scorching Edge
  • High priority: Ashen Sentence
  • Highest priority: Mortenax Decree
  • High priority: Blade of the Last Dawn
  • Lower priority: Unforgiven Ember

Raise the ability that defines Mortenax Blade's main role first. Mortenax Blade's lower-impact Traces can wait until the character, Light Cone and main teammates are leveled.

Investment advice

Level Mortenax Blade, the Light Cone and key Traces before long Relic farming sessions. Mortenax Blade is complete at E0 with a suitable alternative Light Cone. Compare Mortenax Blade's signature or Eidolons with upgrades for the full team.

Frequently asked questions

Does Mortenax Blade need the signature Light Cone?

No. The End Etched in Steel is the premium recommendation, but the listed alternatives preserve the core playstyle.

What is the most important build rule?

Meet Mortenax Blade's listed stat targets first, then add damage or utility without changing the planned turn order.