Adult Green Dragon
2014Huge dragon, Lawful Evil
Armor Class 19
Hit Points 207 ()
Speed 40 ft., fly 80 ft., swim 40 ft.
Initiative
Saving Throws DEX +6, CON +10, WIS +7, CHA +8
Skills Deception +8, Insight +7, Perception +12, Persuasion +8, Stealth +6
Damage Immunities poison
Condition Immunities poisoned
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 22
Languages Common, Draconic
Challenge 15 (13,000 XP)
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: , reach 10 ft., one target. piercing damage plus poison damage.
Claw. Melee Weapon Attack: , reach 5 ft., one target. slashing damage.
Tail. Melee Weapon Attack: , reach 15 ft., one target. 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 16 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 60-foot cone. Each creature in that area must make a DC 18 Constitution saving throw, taking 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 10 feet of the dragon must succeed on a DC 19 Dexterity saving throw or take bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.
Lair Actions
On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can't use the same effect two rounds in a row:
Grasping Roots. Grasping roots and vines erupt in a 20-foot radius centered on a point on the ground that the dragon can see within 120 feet of it. That area becomes difficult terrain, and each creature there must succeed on a DC 15 Strength saving throw or be restrained by the roots and vines. A creature can be freed if it or another creature takes an action to make a DC 15 Strength check and succeeds. The roots and vines wilt away when the dragon uses this lair action again or when the dragon dies.
Thorny Wall. A wall of tangled brush bristling with thorns springs into existence on a solid surface within 120 feet of the dragon. The wall is up to 60 feet long, 10 feet high, and 5 feet thick, and it blocks line of sight. When the wall appears, each creature in its area must make a DC 15 Dexterity saving throw. A creature that fails the save takes piercing damage and is pushed 5 feet out of the wall's space, appearing on whichever side of the wall it wants. A creature can move through the wall, albeit slowly and painfully. For every 1 foot a creature travels through the wall, it must spend 4 feet of movement. Furthermore, a creature in the wall's space must make a DC 15 Dexterity saving throw once each round it's in contact with the wall, taking piercing damage on a failed save, or half as much damage on a successful one. Each 10-foot section of wall has AC 5, 15 hit points, vulnerability to fire damage, resistance to bludgeoning and piercing damage, and immunity to psychic damage. The wall sinks back into the ground when the dragon uses this lair action again or when the dragon dies.
Charming Mist. Magical fog rolls in around one creature the dragon can see within 120 feet of it. The creature must make a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round.
Regional Effects
The region containing a legendary green dragon's lair is warped by the dragon's magic, which creates one or more of the following effects: If the dragon dies, the thickets remain but become ordinary plants. Other effects fade over days.
Deceptive Mist. Thickets form labyrinthine passages within 1 mile of the dragon's lair. The thickets act as 10-foot-high, 10-foot-thick walls that block line of sight. Creatures can move through the thickets, with every 1 foot of movement through the thickets costing 4 feet of movement. A creature in the thickets must make a DC 15 Dexterity saving throw once each round it's in contact with the thickets or take piercing damage from thorns.
Beast Spies. Within 1 mile of its lair, the dragon leaves no physical evidence of its passage unless it wishes to. Tracking it there is impossible except by magical means. In addition, it ignores movement restrictions caused by undergrowth.
Luring Paths. Rodents and birds within 1 mile of the dragon's lair serve as the dragon's eyes and ears. Deer and other large game are strangely absent, hinting at the predator's bytes.