Perfect Countersong

Sustain a flawless protective harmony. Creatures of your choice in the emanation that can hear you cannot be charmed or frightened, have advantage on saving throws against powers and spells, and reduce psychic, thunder, and force damage they take by 22 (4d10). Once per round, when a hostile creature in the emanation uses a power or spell with a verbal, sonic, charm, fear, or psychic component, you may force it to make a CHA save. On a failed save, the power or spell fails and is wasted.