Multiattack

The herald makes two void claw attacks. Alternatively, it can use its Void Ray twice.

Void Claw

Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 18 (3d8 + 5) cold damage plus 4 (1d8) force damage.

Void Ray

Ranged Spell Attack: +8 to hit, range 120 ft., one target. Hit: 9 (2d8) cold damage and 9 (2d8) force damage.

The Final Song (Recharge 5-6)

The herald utters a melody of cosmic doom in a 30-foot cone. Each creature in that area must make a DC 17 Wisdom saving throw, taking 27 (6d8) psychic damage on a failed save, or half as much damage on a successful one. This melody doesn't affect creatures that understand Void Speech.