Before:
Fearsome Command
Encounter ✦ Arcane, Fear, Implement, Psychic
Standard Action, Area burst 2 within 10 squares
Target: Each creature in the burst
Attack: Primary ability vs. Will
Hit: 2d6 + ability modifier psychic damage, and the target is slowed until the end of your next turn.
Effect: The next ally who hits and damages one of the targets before the end of your next turn automatically succeeds on any one saving throw at the end of his or her turn.
Level 13: Hit: As above, but 3d6 + ability modifier psychic damage.
Level 23: Hit: As above, but 5d6 + ability modifier psychic damage.

After:
Fearsome Command
Encounter ✦ Arcane, Fear, Implement, Psychic, Radiant
Standard Action, Area burst 2 within 10 squares
Target: Each enemy in burst
Attack: Primary ability vs. Will
Hit: 1d6 + ability modifier psychic and radiant damage, and the target is slowed until the end of your next turn.
Effect: The target is deafened until the end of your next turn.
Level 13: Hit: 2d4 + ability modifier psychic and radiant damage, and the target is immobilized until the end of your next turn.
Level 23: Hit: 2d6 + ability modifier psychic and radiant damage, and the target is restrained until the end of your next turn.