Realizing your ally's aim is off, you quickly strike the target of your comrade's attack and try to distract it to help your ally hit.

Encounter   ✦     Martial, Weapon
Immediate Interrupt      Melee or Ranged weapon

Trigger: An enemy is missed by your ally's attack

Target: The triggering enemy

Attack: Strength vs. AC

Hit: 2[W] + Strength modifier damage. The ally can reroll his or her attack roll against the target and use either result.

Published in Martial Power 2, page(s) 93.