Each foe you drop adds power to your destructive melee attacks.

Daily   ✦     Primal, Stance
Minor Action      Personal

Effect: You assume the bloody harvest stance. Until the stance ends, each time you reduce an enemy to 0 hit points with a melee weapon attack, you gain a bonus to the next damage roll you make with a melee weapon attack before the end of your next turn. The bonus equals your primary ability modifier.

Published in Dark Sun Campaign Setting, page(s) 73.