You're a good luck charm to your allies, attracting the blessing of Lady Luck in everything you do.

Encounter   ✦     Martial, Weapon
Standard Action      Melee or Ranged weapon

Attack: Strength vs. AC

Target: One creature

Hit: 2[W] + Strength modifier damage. Until the end of your next turn, whenever an ally within 5 squares of you makes a melee or a ranged attack roll, he or she can roll twice and use either result.

Published in Martial Power 2, page(s) 99.