Large dragon, chaotic evil

Armor Class 18 (natural armor)

Hit Points 127 (15d10 + 45)

Speed 40 ft., fly 80 ft., swim 40 ft.

STR DEX CON INT WIS CHA
19 (+4) 14 (+2) 17 (+3) 12 (+1) 11 (+0) 15 (+2)

Saving Throws Dex +5, Con +6, Wis +3, Cha +5

Skills Perception +6, Stealth +5

Damage Immunities acid

Senses blindsight 30 ft., darkvision 120 ft., passive Perception 16

Languages Common, Draconic

Challenge 7 (2,900 XP)

Amphibious. The dragon can breathe air and water.

Actions

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

Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 4) piercing damage plus 4 (1d8) acid damage.

Claw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage.

Acid Breath (Recharge 5–6). The dragon exhales acid in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw, taking 49 (11d8) acid damage on a failed save, or half as much damage on a successful one.