Basic Stats
- Size/Type: Large Dragon
- Alignment: Lawful Neutral
- Armor Class: 19 (natural armor)
- Hit Points: 210 (18d10 + 108)
- Speed: 40 ft., fly 100 ft. (hover)
Ability Scores
- Strength: 21 (+5)
- Dexterity: 18 (+4)
- Constitution: 22 (+6)
- Intelligence: 17 (+3)
- Wisdom: 16 (+3)
- Charisma: 20 (+5)
Saving Throws
- Dexterity: +9
- Constitution: +11
- Wisdom: +8
- Charisma: +10
Skills
- Arcana: +8
- Perception: +13
Damage Immunities
- Piercing (from nonmagical attacks)
- Radiant
Senses
- Darkvision 120 ft., Blindsight 60 ft., Passive Perception 23
Languages
- Common, Draconic, Primordial
Challenge Rating
- 16 (15,000 XP)
Traits
- Legendary Resistance (3/Day): If the dragon fails a saving throw, it can choose to succeed instead.
- Crystalline Reflection: The dragon has advantage on saving throws against spells and other magical effects.
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 plus 9 (2d8) radiant 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.
- Crystal and Gem Shard Breath (Recharge 5-6): The dragon exhales a 60-foot cone of sharp crystal and gem shards. Each creature in that area must make a DC 19 Dexterity saving throw, taking 58 (13d8) piercing damage and 14 (4d6) radiant damage on a failed save, or half as much of each type on a successful one.
- Gemstone Glare: The dragon fixes its gaze on one creature it can see within 60 feet. The target must succeed on a DC 18 Wisdom saving throw or be stunned until the end of its next turn.
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.
- Tail Attack: The dragon makes a tail attack.
- Wing Attack (Costs 2 Actions): The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 18 Dexterity saving throw or take 12 (2d6 + 5) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.
Special Abilities
- Prismatic Flight: The dragon’s wings refract light, granting it resistance to radiant damage and causing its attacks to deal an extra 7 (2d6) radiant damage while in sunlight.
- Crystal Resilience: The dragon’s scales harden when not moving, giving it resistance to bludgeoning damage when it hasn’t taken the Dash or Disengage action since the end of its last turn.