Cain found himself submerged within an immense cauldron filled with seething blood, its temperature soaring high enough to melt the massive amount of metal suspended within it. A typical Wave Champion would have their flesh scorched within minutes, yet Cain bore not a single wound.
The Biometal Herculean Technique's training involved altering one's blood's chemical composition, replacing iron with another element. The process began at the Bronze Infusion level.
Initially, at the Bronze Infusion stage, the practitioner commences the transformation by consciously introducing bronzy elements into their bloodstream. This initiation typically hinges on an advanced mastery over their blood and their Rebirth Blood Stage.