You aim for where the blood already flows.

Encounter   ✦     Martial, Weapon
Standard Action      Melee or Ranged weapon

Target: One bloodied creature

Attack: Strength vs. AC (melee) or Dexterity vs. AC (ranged)

Hit: 3[W] + Strength modifier + Wisdom modifier damage (melee) or 3[W] + Dexterity modifier + Wisdom modifier damage (ranged).

Published in Martial Power, page(s) 50.