What this arrow pierces soon falls.

Daily   ✦     Arcane, Weapon
Standard Action      Ranged weapon

Target: One creature

Attack: Charisma vs. AC

Hit: 2[W] + Charisma modifier damage, and the target is affected by your arrow of destiny (save ends). While the target is affected by the arrow of destiny, whenever the target is hit by an attack from an ally, you can use an immediate interrupt to make the attack a critical hit.

Miss: Half damage. If the target is hit by an attack from an ally before the end of your next turn, you can use an immediate interrupt to make the attack a critical hit.

Published in Arcane Power, page(s) 17.