Blood Sacrifice
Barbarian Attack 7
You wound yourself, offering your pain to the spirits in exchange for a more telling strike.
Melee weapon
Target: One creature
Attack: Strength vs. Fortitude
Hit: 2[W]+Strength modifier damage.
Miss: Half damage.
Effect: Before the attack, you can take 1d10 damage. If you do so, you gain a bonus to the damage to the damage roll equal to the damage you take + your Constitution modifier.
Blood Sacrifice is an encounter power available to Barbarians at the 7th level. At the cost of hit points, the user gains a bonus to the next damage roll. [PrP:15]