Armor Class 17 (natural armor)
Hit Points 38 (7d8 + 7)
Speed 30 ft., fly 60 ft., swim 30 ft.
Saving Throws DEX +3, CON +3, WIS +2, CHA +3
Skills Perception +4, Stealth +3
Damage Immunities poison
Condition Immunities poisoned
Senses blindsight 10 ft., darkvision 60 ft., passive Perception 14
Languages Draconic
Challenge 2
Amphibious. The dragon can breathe air and water.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (1d10 + 2) piercing damage plus 3 (1d6) poison damage.
Poison Breath (Recharge 5–6). The dragon exhales poisonous gas in a 15-foot cone. Each creature in that area must make a DC 11 Constitution saving throw, taking 21 (6d6) poison damage on a failed save, or half as much damage on a successful one.
Monster Manual (2014), p. 95