Masks of Menace
Bard Attack 17
You warp your enemy's perception so that it perceives your allies as frightful beasts. Only one ally retains a normal appearance.
Ranged 10
Target: One creature
Attack: Charisma vs. Will
Hit: 3d6 + Charisma modifier psychic damage. Choose an ally within 5 squares of you. Until the end of your next turn, the target takes a -5 penalty to attack rolls for any attack that doesn't include that ally as a target.
Masks of Menace is an encounter power available to bards at 17th level.[PH2:74]