Adult Gold Dragon
Huge dragon, lawful good
Armor Class 19 (natural armor)
Hit Points 243 (18d12 + 126)
Speed 40 ft., fly 80 ft., swim 40 ft., climb 20 ft.
str
27 (+8)
dex
14 (+2)
con
25 (+7)
int
16 (+3)
wis
15 (+2)
cha
24 (+7)
Saving Throws Dex +8, Wis +8
Skills Insight +8, Perception +14, Persuasion +13, Stealth +8
Damage Immunities fire
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 24
Languages Common, Draconic
Challenge 17 (18,000 XP)
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
Fire Breath. Dexterity Saving Throw: DC 21, each creature in a 60-foot Cone. Failure: 66 (12d10) Fire damage. Success: Half damage.
Multiattack. The dragon makes three Rend attacks. It can replace one attack with a use of (A) Spellcasting to cast Guiding Bolt (level 2 version) or (B) Weakening Breath.
Rend. Melee Attack Roll: +14, reach 10 ft. 17 (2d8 + 8) Slashing damage plus 4 (1d8) Fire damage.
Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 21, +13 to hit with spell attacks): - **At Will:** Detect Magic, Guiding Bolt, Shapechange - **1/Day Each:** Flame Strike, Zone of Truth
Weakening Breath. Strength Saving Throw: DC 21, each creature that isn't currently affected by this breath in a 60-foot Cone. Failure: The target has Disadvantage on Strength-based D20 Test and subtracts 3 (1d6) from its damage rolls. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds automatically.
Spellcasting (CHA, DC 21, +13 to hit)
At Will: Detect Magic, Guiding Bolt, Shapechange
1/Day Each: Flame Strike, Zone of Truth
Attack Summary
Legendary Actions
The adult gold 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 adult gold dragon regains spent legendary actions at the start of its turn.
Banish. Charisma Saving Throw: DC 21, one creature the dragon can see within 120 feet. Failure: 10 (3d6) Force damage, and the target has the Incapacitated condition and is transported to a harmless demiplane until the start of the dragon's next turn, at which point it reappears in an unoccupied space of the dragon's choice within 120 feet of the dragon. Failure or Success: The dragon can't take this action again until the start of its next turn.
Guiding Light. The dragon uses Spellcasting to cast Guiding Bolt (level 2 version).
Pounce. The dragon moves up to half its Speed, and it makes one Rend attack.