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Dissonant Strain
Bard Attack 3

You sing in two pitches at once, creating a song that harms your foe while helping your ally.

Ranged 5

Target: One creature

Attack: Charisma vs. Will

Hit: 2d6 + Charisma modifier psychic damage, and the target takes a -2 penalty to attack rolls until the end of your next turn. In addition, an ally within 5 squares of you can make a saving throw.

Dissonant Strain is an encounter power available to bards at 3rd level.[PH2:70]