You direct an attack meant for you to another enemy.

Daily   ✦     Martial, Weapon
Immediate Interrupt      Melee or Ranged weapon

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

Trigger: An enemy hits you with a melee or a ranged attack.

Target: The triggering enemy

Attack: Charisma vs. Will

Hit: The attack hits a creature of your choice within 2 squares of you, instead of hitting you.

Miss: The target's attack deals only half damage to you.

Update (2/23/2012)
Changed in Jan/Feb 2012 updates.

Published in Player's Handbook, page(s) 126, Class Compendium.