Bard Utility 22Climactic Chord
You call on the fighting spirit of your allies, compelling them to strike as one.
Minor Action Close burst 10
Target: Each ally in the burst
Effect: Each target can make a basic attack or use an atwill attack power as a free action, with a power bonus to the attack roll and the damage roll equal to your Charisma modifier.
Published in Arcane Power, page(s) 15.