Though the fury of your attack is directed at a single foe, no nearby enemy is spared your wrath.

Encounter   ✦     Primal, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Strength vs. AC

Hit: 2[W] + Strength modifier damage, and each bloodied enemy adjacent to you takes damage equal to your Constitution modifier.

  Rageblood Vigor: Each enemy adjacent to you that is not bloodied also takes damage equal to your Constitution modifier.

Published in Player's Handbook 2, page(s) 52.