# Ancient Green Dragon

*Gargantuan* *Dragon* *lawful evil*

- **Armor Class:** 21 (natural armor)
- **Hit Points:** 385 (22d20+154)
- **Speed:** walk 40 ft. fly 80 ft. swim 40 ft.
- **Challenge Rating:** 22 (41,000 XP)
- **Source:** 5.1 SRD (2015 MM), page 284

| STR | DEX | CON | INT | WIS | CHA |
| --- | --- | --- | --- | --- | --- |
| 27 (+8) | 12 (+1) | 25 (+7) | 20 (+5) | 17 (+3) | 19 (+4) |

- **Saving Throws**: Dex +8, Con +14, Wis +10, Cha +11
- **Skills:** deception +11, insight +10, perception +17, persuasion +11, stealth +8
- **Damage Immunities:** poison
- **Condition Immunities:** poisoned
- **Senses:** blindsight 60 ft., darkvision 120 ft., passive Perception 27
- **Languages:** Common, Draconic

### Special Abilities

- **Amphibious:** The dragon can breathe air and water.
- **Legendary Resistance (3/Day):** If the dragon fails a saving throw, it can choose to succeed instead.

### Actions

- **Multiattack:** The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
- **Bite:** Melee Weapon Attack: +15 to hit, reach 15 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 10 (3d6) poison damage.
- **Claw:** Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 22 (4d6 + 8) slashing damage.
- **Tail:** Melee Weapon Attack: +15 to hit, reach 20 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.
- **Frightful Presence:** Each creature of the dragon's choice that is within 120 feet of the dragon and aware of it must succeed on a DC 19 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours.
- **Poison Breath (Recharge 5-6):** The dragon exhales poisonous gas in a 90-foot cone. Each creature in that area must make a DC 22 Constitution saving throw, taking 77 (22d6) poison damage on a failed save, or half as much damage on a successful one.

The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn.

### Legendary Actions

- **Detect:** The dragon makes a Wisdom (Perception) check.
- **Tail Attack:** The dragon makes a tail attack.
- **Wing Attack (Costs 2 Actions):** The dragon beats its wings. Each creature within 15 ft. of the dragon must succeed on a DC 23 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.