Ancient Topaz Dragon

Gargantuan dragon, neutral good

Armor Class

22 (natural armor)

Hit Points

231 (22d20)

Speed

40 ft., fly 80 ft. (hover)

STR

20 (+5)

DEX

24 (+7)

CON

10 (+0)

INT

22 (+6)

WIS

16 (+3)

CHA

20 (+5)

Damage Immunities

fire, lightning

Damage Resistances

bludgeoning, slashing, and piercing from nonmagical attacks

Damage Vulnerabilities

psychic

Senses

blindsight 60 ft., darkvision 120 ft., passive Perception 25

Saving Throws

Dex +13, Int +12, Wis +9, Cha +11

Skills

Arcana +12, Insight +9, Perception +9, Religion +12

Languages

Common, Draconic, telepathy 120 ft.

Challenge

20 (25,000 XP)

Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.

Uplift Aura. All allies within 30 feet gain +6 on Intelligence checks and saving throws.

Psionics

Charges: 22

Recharge: 1d10

Fracture: 23

Actions

Multiattack. The dragon makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit: 16 (2d10 + 5) piercing damage.

Claw. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) slashing damage.

Tail. Melee Weapon Attack: +11 to hit; reach 20 ft., one target. Hit: 14 (2d8 + 5) bludgeoning damage.

Legendary Actions

The 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 dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) Check.

Psionics. The dragon uses a psionic ability.

Psionic Shift (Costs 2 Actions). The dragon releases a wave of telekinetic energy from its mind. Every creature within 15 feet must make a DC 24 Intelligence saving throw or take 13 (2d6 + 6) force damage and be knocked prone. The dragon then can move up to half its movement 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.

The dragon manifests another world at no cost. It affects up to four creatures.
The dragon remembers a 5th-level spell it once researched, and casts it. Its spellcasting ability is Intelligence, and the save DC to resist its spells is 21.
The dragon remembers counterspell and can cast it as a reaction within the next minute. The dragon’s spellcasting ability is Intelligence.

Regional Effects

Intelligent creatures who sleep within 12 miles of a topaz dragon’s lair dream of ancient lore they never studied, and in these dreams they hold conversations with sages speaking languages the dreamer does not know, but in the dream can speak and understand.