Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 17 (2d10 + 6) piercing damage.

Claw. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6) slashing damage.

Breath Weapons (Recharge 5–6). The dragon uses one of the following breath weapons.

force. The dragon exhales an icy blast in a 30-foot cone. Each creature in that area must make a DC 17 dexterity saving throw, taking 54 (12d8) force damage on a failed save, or half as much damage on a successful one.

exploding gem breath. The dragon spits out a giant gemstone at a point within 30ft of them.Everyone within 15ft of the gem must make a dc 17 dexterity saving throw or take 63 (14d8) piercing damage.