Melee kills charge Carl's patch with soul essence that can empower one attack, grow future storage, and dangerously corrupt the wearer if retained.
Equipping the Scavenger's Daughter creates an empty Soul Essence bar under Carl's mana. Every creature he kills in melee contributes essence shaped by the fallen creature's nature.
When full, Carl can drain the entire reserve into one melee strike with a variable special effect. Each fill-and-discharge cycle permanently increases storage, so repeated killing increases future power.
Mordecai has seen gorgon essence petrify and shatter a country boss in one hit. He warns Carl to empty the bar promptly because corrupted souls accumulate like a delayed toxin, though the AI dismisses the danger.
A dark soul-energy bar filling with varied spectral faces after melee kills.
Soul Reaper supplies Carl with scaling, creature-dependent melee finishers at a corruption risk.