Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (1d10 + 2) piercing damage plus 2 (1d4) cold damage.
Cold Breath. The dragon exhales an icy blast of hail in a 15-foot cone. Each creature in that area must make a DC 12 Constitution saving throw, taking 22 (5d8) cold damage on a failed save, or half as much damage on a successful one.