Amphibious. The dragon can breathe air and water. Siege Monster. The dragon deals double damage to objects and structures.
Multiattack.[/b] The dragon makes one bite attack and one claw attack. Bite. Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 16 2d10+5 piercing damage plus 6 1d10 force damage. Claw. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 14 2d8+5 slashing damage. Tail. Melee Weapon Attack: +9 to hit, reach 20 ft., one target. Hit: 12 1d12+5 bludgeoning damage plus 5 1d8 force damage. Steam Breath (Recharge 5–6). The dragon exhales water and steam in a 60-foot cone. Each creature in that area must make a DC 15 Constitution saving throw, taking 39 7d10 fire damage on a failed save, or half as much damage on a successful one. Being underwater doesn't grant resistance against this damage.