You strike from the shadows, delivering a wound that distracts your foe and makes him drop his guard.

Encounter   ✦     Martial, Weapon
Standard Action      Melee or Ranged weapon

Requirement: You must be wielding a crossbow, a light blade, or a sling.

Target: One creature granting combat advantage to you

Attack: Dexterity vs. AC

Hit: 2[W] + Dexterity modifier damage, and the target grants combat advantage until the end of your next turn.

Update (10/4/2011)
Updated in Class Compendium.

Published in Player's Handbook, page(s) 128, Class Compendium.