Young Green Dragon

Large dragon, lawful evil

Armor Class: 18 (natural armor)
Hit Points: 136 (16d10 + 48)
Speed: 40 ft., fly 80 ft., swim 40 ft.

STR: 19 (+4)
DEX: 12 (+1)
CON: 17 (+3)
INT: 16 (+3)
WIS: 13 (+1)
CHA: 15 (+2)

Saving Throws: Dex +4, Con +6, Wis +4, Cha +5
Skills: Deception +5, Perception +7, Stealth +4
Damage Immunities: poison
Condition Immunities: poisoned
Senses: blindsight 30 ft., darkvision 120 ft., passive Perception 17
Languages: Common, Draconic
Challenge: 8 (3,900 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 7 (2d6) poison damage.

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

Poison Breath (Recharge 5-6). The dragon exhales poisonous gas in a 30-foot cone. Each creature in that area must make a DC 14 Constitution saving throw, taking 42 (12d6) poison damage on a failed save, or half as much damage on a successful one.

Running this fight? Add the young green dragon to the initiative tracker: type its name and the AC, hit points and initiative bonus fill in, and the book button shows this stat block mid-fight.