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Ancient Green Dragon

Monster Image

Basic

Size: Gargantuan

Type: dragon

Alignment: lawful evil

Health

Hit Points: 385

Hit Dice: 22d20

HP Roll: 22d20+154

Armor

Type: natural

Value: 21

Movement

Walk: 40 ft.

Fly: 80 ft.

Swim: 40 ft.

Ability Scores

Strength: 27

Dexterity: 12

Constitution: 25

Intelligence: 20

Wisdom: 17

Charisma: 19

Proficiencies

  • Saving Throw: DEX: +8
  • Saving Throw: CON: +14
  • Saving Throw: WIS: +10
  • Saving Throw: CHA: +11
  • Skill: Deception: +11
  • Skill: Insight: +10
  • Skill: Perception: +17
  • Skill: Persuasion: +11
  • Skill: Stealth: +8

Senses

  • blindsight: 60 ft.
  • darkvision: 120 ft.
  • passive_perception: 27

Damage Vulnerabilities

None

Damage Resistances

None

Damage Immunities

  • poison

Condition Immunities

  • Poisoned

Special Abilities

  • Amphibious: The dragon can breathe air and water.
  • Legendary Resistance: If the dragon fails a saving throw, it can choose to succeed instead.
    • Usage Type: per day
    • Count: 3
    • Rest Types: None

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: 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.

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.

Other Information

Languages: Common, Draconic

Challenge Rating: 22

Proficiency Bonus: 7

XP: 41000