Crystal Dragons

Crystal dragons are the friendliest of the gem dragons. They are always curious about the world, so they enthusiastically converse with willing visitors.
Crystal dragons are mostly descended from brass and white dragons, although other dragon types also contributed to their bloodline.

Basic Information

Anatomy

A crystal dragon is a dazzling creature, its hide white and brilliant in any light, and absolutely radiant in the light of the sun. While this unfortunate trait makes them easy targets for larger dragons, it also lends to their graceful beauty. The most slender and sleek of the gems, the crystal dragon's hide is smooth, seeming to have almost no scales along its length.

Growth Rate & Stages

A wyrmling crystal dragon's scales are glossy white. As it ages, its scales become translucent. Moonlight and starlight cause them to luminesce, and full sunlight lends them a dazzling brilliance.
Wyrmling scales start as a murky quartz, slowly becoming more translucent and reflective as time goes on.
They are considered wyrmlings for the first five years, very young until age 15, reach the juvenile stage at 25 years, and become sexually mature at 50 years, being considered fully adult at 100. They are considered mature at 200, old at 400, very old at 600, and ancient at 800 years. Beyond 1,000 they are considered wyrms, and great wyrms after 1,200 years.

Ecology and Habitats

Crystal dragons build incredible ice palaces atop high, cold mountain peaks, where they can watch the stars and create sculptures out of ice and snow.

Additional Information

Social Structure

Crystal dragons are very sexually active. While they might settle down with a partner that makes them happy for a short while, they never do so permanently and are almost always looking for a new mate.

Civilization and Culture

Beauty Ideals

There are only a few things that can cause a crystal dragon to enact violence upon another sentient being, but attempting to steal from one is very, very high on the list. This is because every single piece of their hoard has some sort of sentimental value to the dragon, whether it is a memory of the person that gave them the item, or a mood that they felt when the found it, each part of their hoard is a different part of their life. For this reason, even things as worthless as a discarded shirt or a rosewood anklet could be the absolute prized possession of a crystal dragon, and a visitor must be careful to not cause damage to any item they find within the lair, even if it looks like trash.
For this reason as well, the crystal dragon is shockingly willing to give up some of the most monetarily valuable parts of its hoard for simple baubles and trinkets from mortal friends who are down on their luck and in need of some help, valuing their friendship and cherishing their memories far, far more than some glittery bits of gold.

Interspecies Relations and Assumptions

A crystal dragon rarely instigates a fight without cause. If a visitor is intriguing or seems friendly, the dragon attempts a conversation; otherwise it tries to avoid a meeting. If visitors dare to attack, however, a crystal dragon does not hesitate to respond in kind.
Crystal dragons, while counted among the weakest of the true dragons, are also by and far some of the most sought after and constant companions one could hope for. Their skittish and nervous behavior balances out an almost gregarious nature they tend to exude, and of all the gem dragons, only the amethyst is more loathe to come to blows with a sentient creature than the crystal.
While cheerful, helpful and friendly, the crystal dragon is also has absolutely no sense of responsibility and absolutely no work ethic. While they are dragons, they only flaunt it to extort things that are "fun" from people and in all other ways try to live life to the fullest. While this makes them careless, the crystal dragon will be absolutely mortified if their antics actually bring harm or hardship to any other being. They are cheerful enough that such an occurrence will not make them stop... but they will still feel bad about it.
The curious and mischievous crystal dragon is endlessly amused by shorter-lived beings, and goes out of its way to be a welcoming host for them if any come to its home. As long as a person does not try to steal from or harm a crystal, they will always find a helpful, somewhat immature, friend to "play" with. Even the most cruel of warlords has a place in a crystal's home.

Genetic Ancestor(s)

• Brass Dragons
• Gem Dragons
• White Dragons

Adult Crystal Dragon

Huge dragon, chaotic neutral

Armor Class 19 (Natural Amor)

Hit Points 231 21d12+105

Speed 40ft Fly: 150ft Burrow: 5ft Swim: 40ft

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STR

29 +9

DEX

10 0

CON

21 +5

INT

18 +4

WIS

19 +4

CHA

19 +4

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Skills Deception +8, Diplomacy +8, Arcana +8, History +8, Nature +8, Religion +8, Perception +8, Investigation +8

Damage Resistances Fire; Bludgeoning, Piercing, And Slashing From Nonmagical Weapons

Damage Immunities Cold

Condition Immunities paralyzed

Senses Darkvision 800 ft., Blindsight 240 ft, passive Perception 18

Languages Draconic

Challenge 12

Immunity to sleep. Magic can't put a gem dragon to sleep.
Innate Spellcasting (Psionics). The crystal dragon's innate spellcasting ability is Charisma (spell save DC 16). The crystal dragon can innately cast the following spells, requiring no material components:
3/day each: charm person, color spray
Thought Shield. The dragon's thoughts can't be read by telepathy or other means unless they allow it. You also have resistance to psychic damage, and whenever a creature deals psychic damage to them, that creature takes the same amount of damage that they do.
Legendary Resistance (3/Day): If the dragon fails a saving throw, it can choose to succeed instead.

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Actions

Multiattack: The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Bite: Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 19 (2d10 + 8) piercing damage.
Claw: Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 15 (2d6 + 8) slashing damage. Tail: Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage. Frightful Presence: Each creature of the dragon's choice that is within 180 ft. of the dragon and aware of it must succeed on a DC 16 Wisdom saving throw or become Frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the dragon's Frightful Presence for the next 24 hours.
Light Breath (Recharge 5-6): The dragon exhales a blast of concussive force in a 50-foot cone. Each creature in that area must make a DC 16 Dexterity saving throw. On a failed save, the creature takes 42 (14d6) force damage and is blinded for 1d4 rounds. On a successful save, they take half damage and are not blinded.
Planar Travel. As an action, the dragon can travel between the Material Plane and their home plane.
Id Insinuation (4/Day). By invading the mind of a creature within 35 ft. with their psychic presence, the dragon can isolate parts of its mind, preventing the target from functioning in a coherent manner. The target is confused as long as they concentrate on it plus 1 additional round. A successful Wisdom save (DC 16) negates this effect.

Legendary Actions

Can take 3 Legendary Actions, choosing from the options below. Only one legendary action can be used at a time, and only at the end of another creature's turn. Spent legendary Actions are regained at the start of each 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 10 ft. of the dragon must succeed on a DC 21 Dexterity saving throw or take 20 (2d6 + 9) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.

This stat block is for a dragon around 100-800 years. For dragons of different age categories, check out the following:
Newborn Crystal Dragon (0-5 years)
Wyrmling Crystal Dragon (5-25 years)
Young Crystal Dragon (25-100 years)
Ancient Crystal Dragon (800 years or older)