Barbarian Attack 3Blood Strike
Blood calls to blood. Your pain and your enemy’s give strength to your assault.
Encounter Primal, Weapon
Standard Action Melee weapon
Target: One creature
Attack: Strength vs. AC
Hit: 2[W] + Strength modifier damage. If you or the target is bloodied, the attack deals 1[W] extra damage.
Published in Player's Handbook 2, page(s) 52.