Medium dragon, chaotic evil
Saving Throws Dex +4, Con +3, Wis +2, Cha +3
Skills Perception +4, Stealth +4
Damage Immunities acid
Senses blindsight 10 ft., darkvision 60 ft., passive Perception 14
Languages Draconic
Challenge 2 (450 XP) Proficiency Bonus +2
Traits
Amphibious. The dragon can breathe air and water.
Actions
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 (1d10 + 2) piercing damage plus 2 (1d4) acid damage.
Acid Breath (Recharge 5β6). The dragon exhales acid in a 15-foot line that is 5 feet wide. Each creature in that line must make a DC 11 Dexterity saving throw, taking 22 (5d8) acid damage on a failed save, or half as much damage on a successful one.