Ancient Green Dragon

D&D 5.5e · gargantuan dragon, lawful evil

Challenge 22 (41000 XP)

STR
27 (+8)
DEX
12 (+1)
CON
25 (+7)
INT
20 (+5)
WIS
17 (+3)
CHA
22 (+6)

Defense

Armor Class 21 (natural armor)
Hit Points 402 (23d20+161)
Speed 40 ft., fly 80 ft., swim 40 ft., climb 40 ft.

Proficiencies & Senses

Saving Throws Dex +8, Wis +10
Skills Deception +13, Perception +10, Stealth +8
Languages Common, Draconic
Blindsight 60 ft.
Passive Perception 20

Traits

Damage Immunities Poison
Condition Immunities Poisoned

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 makes three Rend attacks. It can replace one attack with a use of Spellcasting to cast Mind Spike (level 5 version).

Rend

Melee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 19 (2d8+8) slashing damage plus 10 (3d6) poison damage.

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.

Spellcasting

The dragon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 20): At will: Detect Magic, Mind Spike (level 5 version) 1/day each: Geas, Modify Memory

Reference Text

Ancient green dragons are cunning and manipulative, dwelling in ancient forests. They are known for their corrosive breath and mastery of deception.