Adult Green Dragon

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Image prompthuge chromatic green dragon, sinuous serpentine neck, oily olive-green overlapping scales, tall single neck-frill, cunning slitted eyes, pale green poison vapor curling from fangs, coiled among rotted drowned trees, moss-choked corrupted swamp grove, dripping venom, stalking lowered-neck pose, mist tendrils, dark fantasy, grimdark, painterly digital art, dramatic chiaroscuro lighting, muted desaturated palette with corrupted-crimson accents, weathered post-Cataclysm atmosphere, intricate high detail, cinematic composition

Huge Dragon (Chromatic), Lawful Evil

CR 15ControllerUnderground

AC 19

Initiative +11 (21)

HP 207 (18d12 + 90)

Speed 40 ft., Fly 80 ft., Swim 40 ft.

STR

save +6

DEX

save +6

CON

save +5

INT

save +4

WIS

save +7

CHA

save +4

Skills Deception +9, Perception +12, Persuasion +9,

Immunities Poison; Poisoned

Senses Blindsight 60 ft., Darkvision 120 ft.;

Languages Common, Draconic

Traits

Amphibious. The dragon can breathe air and water.

Legendary Resistance (3/Day, or 4/Day in Lair). 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 3 version).

Rend. Melee Attack Roll: Hit: +11, reach 10 ft. 15 (2d8

6) Slashing damage plus 7 (2d6) Poison damage.

Poison Breath (Recharge 5–6). Constitution Saving Throw: Fail- DC 18, each creature in a 60-foot Cone. ure: Success: 56 (16d6) Poison damage. Half damage.

Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 17): Detect Magic Mind Spike At Will: , (level 3 version) Geas 1/Day:

Legendary Actions

Legendary Action Uses: 3 (4 in Lair). Immediately after another creature’s turn, the dragon can expend a use to take one of the following actions. The dragon regains all expended uses at the start of each of its turns.

Mind Invasion. The dragon uses Spellcasting to cast Mind Spike (level 3 version).

Noxious Miasma. Constitution Saving Throw: DC 17, each creature in a 20-foot-radius Sphere centered on a Failure: point the dragon can see within 90 feet. 7 (2d6) Poison damage, and the target takes a −2 penalty to AC Failure or Success: until the end of its next turn. The dragon can’t take this action again until the start of its next turn.

Pounce. The dragon moves up to half its Speed, and it makes one Rend attack. Ancient Green Dragon