Multiattack

The dragon attacks once with its bite and twice with its claws. In place of its bite it can use Psionic Wave.

Bite

Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 20 (3d10 + 4) piercing damage plus 4 (1d8) force damage.

Claws

Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 17 (3d8 + 4) slashing damage.

Psionic Wave

The dragon psionically emits a wave of crushing mental pressure. Each creature within 20 feet makes a DC 19 Wisdom saving throw taking 16 (3d10) psychic damage on a failed save or half damage on a success. Creatures charmed by the dragon make this saving throw with disadvantage.

Concussive Breath (Recharge 5-6)

The dragon psionically unleashes telekinetic energy in a 60-foot cone. Each creature in that area makes a DC 18 Constitution saving throw taking 60 (11d10) force damage on a failed save or half damage on a success.