Ancient Green Dragon 5e Stat Block: AC, HP, CR, and Actions

Armor Class

21 (natural)

Hit Points

385

(22d20+154)

Speed:

Walk 40 ft.,

Swim 40 ft.,

Fly 80 ft.,

STR 27 (+8)

DEX 12 (+1)

CON 25 (+7)

INT 20 (+5)

WIS 17 (+3)

CHA 19 (+4)

Saving Throws:

DEX +8

CON +14

WIS +10

CHA +11

Skills:

Deception +11

Insight +10

Perception +17

Persuasion +11

Stealth +8

Damage Vulnerabilities: —

Damage Resistances: —

Damage Immunities: poison

Condition Immunities: Poisoned

Senses:

blindsight 60 ft., darkvision 120 ft.

Passive Perception:

Languages: Common, Draconic

CR:

(41000 XP)

Proficiency Bonus: 7

Traits:

Amphibious. The dragon can breathe air and water.
Legendary Resistance. 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 - 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:

The Ancient Green 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 Ancient Green Dragon regains spent legendary actions at the start of its turn.

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.

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