Multiattack

The dragon attacks once with its bite and twice with its slam.

Bite

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 22 (4d10 + 4) piercing damage.

Slam

Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.

Scouring Breath (Recharge 5-6)

The dragon exhales scouring sand and stones in a 30-foot cone. Each creature in that area makes a DC 16 Dexterity saving throw taking 38 (11d6) slashing damage on a failed save or half damage on a success.