Honkai: Star Rail’s Mortenax Blade guide makes Fire Nihility look dangerous

Honkai: Star Rail players have a new build-guide target in Mortenax Blade. The guide frames him as a 5-star Fire Nihility character who can work as main DPS or support thanks to a dual-form system. His kit consumes HP to increase damage, uses debuffs to control the battlefield and deploys Zone effects that reduce enemy value while raising damage pressure. That is exactly the kind of character who needs a guide, because raw rarity does not explain how to build him properly.

Mismanage HP, relics, Light Cones or teams and you get expensive chaos. Build him correctly and he may become one of the strongest Nihility options in the game. For Star Rail players, this is planning fuel: pre-farm, compare teams and prepare for another round of resource anxiety.