Gem Dragon Sorcery

Most draconic sorcerers carry the power of metallic or chromatic dragons and not gem dragons. However, a rare few do have a draconic bloodline relating to gem dragons. 

Features by Level

• Level 3: Draconic Resilience, Draconic Spells, Dragon Magic
• Level 6: Elemental Affinity
• Level 14: Psychic Abilities
• Level 18: Draconic Manifestation

Level 3: Draconic Resilience

The magic in your body manifests physical traits of your draconic gift. Your Hit Point maximum increases by 3, and it increases by 1 whenever you gain another Sorcerer level.

Parts of you are also covered by dragon-like scales. While you aren’t wearing armor, your base Armor Class equals 10 plus your Dexterity and Charisma modifiers.

Level 3: Draconic Spells

When you reach a Sorcerer level specified in the Draconic Spells table, you thereafter always have the listed spells prepared.

Draconic Spells

Sorcerer Level	Spells
3	Chromatic Orb, Protection from Evil and Good, Detect Thoughts, Dragon's Breath
5	Fly, Sending
7	Banishment, Charm Monster
9	Bigby's Hand, Summon Dragon

Level 3: Gemstone Magic

You can choose to change the damage type of your spells to Force, Necrotic, Psychic, Radiant, or Thunder damage. Choose the damage type you can change it to at 3rd level. This also determines your Elemental Affinity damage type.

Force

You can change the damage type of your spells to 

Necrotic

You can change the damage type of your spells to Necrotic.

Psychic

You can change the damage type of your spells to Psychic.

Radiant

You can change the damage type of your spells to Radiant.

Thunder

You can change the damage type of your spells to Thunder.

Level 6: Elemental Affinity

You choose a damage type associated with Dragons: Force, Necrotic, Psychic Radiant, or Thunder. You gain the following benefits:
• You have Resistance to that damage type.
• When you cast a spell that deals damage of that type, you can add your Charisma modifier to one damage roll of that spell.

Force Damage

You have chosen Force damage.

Necrotic Damage

You have chosen Necrotic damage.

Psychic Damage

You have chosen Psychic damage.

Radiant Damage

You have chosen Radiant damage.

Thunder Damage

You have chosen Thunder damage.

Level 14: Psychic Abilities

You can cast Detect Thoughts at will without a spell slot, using your Charisma modifier as the spellcasting ability. In addition, you can cast Charm Person a number of times per Long Rest equal to your Charisma modifier, and when you do so the target does not realize they were charmed afterwards. 

Level 18: Draconic Manifestation

As a bonus action, you can manifest spectral wings and a draconic form. For 1 minute, you gain a Flying speed of 45 feet, and you gain immunity to your Elemental Affinity damage type. In addition, for the duration, all spells you cast count as being cast with a spell slot level one higher than the one you expended. You can do this once, regaining expended uses upon a long rest.