My first attempt at creating a new feat
Life Blow
You can tap into your own life force to deal more damage on melee attacks.
Prerequisites:Power Attack, Cleave, Con 13
Benefit: On your action, before making attack rolls for a round you may choose to take a certain amount of damage up to your level and add half that number to all melee damage rolls.
Special: This may be used in conjuntion with the Power Attack feat, damage bonuses stack.
Greater Life Blow
Your life force is more potent than normal when using Lifeblow
Prerequisites: Life Blow, Greater Cleave, Con 15
Benefit: On your action, before making attack you may choose to take a certain amount of damage up to your level and add the same number to damage rolls
Special: This may be used in conjunction with the Power Attack feat, damage bonuses stack.