Adult Ruby Dragon

Huge dragon, lawful neutral

Armor Class

20 (natural armor)

Hit Points

135 (18d12 + 18)

Speed

40 ft., fly 80 ft. (hover)

STR

20 (+5)

DEX

22 (+6)

CON

12 (+1)

INT

20 (+5)

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 23

Saving Throws

Dex +11, Int +10, Wis +8, Cha +10

Skills

Arcana +10, Insight +8, Perception +8, Religion +10

Languages

Common, Draconic, telepathy 120 ft.

Challenge

16 (50,000 XP)

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

Amplification Aura. Allies’ spells cast within 30 feet have their saving throw DC increased by 3.

Psionics

Charges: 18

Recharge: 1d8

Fracture: 22

Actions

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

Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage.

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

Tail. Melee Weapon Attack: +10 to hit; reach 15 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 12 (2d6 + 5) force damage and be knocked prone. The dragon then can move up to half its movement speed.