Purple Dragon Sorcerer

Pledged to protect the mage run city-state, they tend to stay well within the kingdom’s borders, and serve as the first line of defense for the western kingdoms against the horrors that exist in the Desolation. They are tasked with using the innate magic within their bloodline from a pact with the Abyssal Dragon, Zubea, to defend their home and their country to their dying breath. 

Purple Dragon Ancestor

Psychic damage is the damage type used by features you gain later, and you now have access to the Vicious Mockery cantrip. You can speak, read, and write Draconic. Additionally, whenever you make a Charisma check when interacting with dragons, your proficiency bonus is doubled if it applies to the check.

Draconic Resilience

As magic flows through your body, it causes physical traits of your dragon ancestors to emerge. At 1st level, your hit point maximum increases by 1 and increases by 1 again whenever you gain a level in this class.

Additionally, parts of your skin are covered by a thin sheen of dragon-like scales. When you aren’t wearing armor, your AC equals 13 + your Dexterity modifier.

Call of the Deep

Starting at 6th level, when you cast a spell that deals psychic damage, you can immediately cast the cantrip, Vicious Mockery, as a bonus action targeting the same creature as your cast spell. At the same time, you can spend 1 sorcery point to gain resistance to psychic damage for 10 min, and your status as a Purple Dragon Sorcerer also allows you for an additional sorcery point per creature, you can target creatures (up to a maximum of three) within 60 ft of you that are allied with you and grant them resistance to psychic damage for 10 min. 

Purple Dragon Bloodline

At 14th level, you can choose one of the following:

You gain resistance to psychic damage and access to the purple dragon's psychotropic breath weapon, which is a 15 ft. cone (DC Cha.) that deals 5d8 psychic damage, as an action.

You can channel the dread presence of your dragon ancestor, causing those around you to become awestruck. As an action, you can spend 5 sorcery points to draw on this power and exude an aura of awe to a distance of 60 feet, either affecting hostile or allied creatures. For 1 minute or until you lose your concentration (as if you were casting a concentration spell), each hostile creature that starts its turn in this aura must succeed on a Wisdom saving throw or be charmed or each allied creature that starts its turn there (up to a maximum of three) has advantage on Intelligence, Wisdom, and Charisma saving throws until the aura ends. A creature that succeeds on this saving throw is immune to your aura for 24 hours.

True Abyssal Dragon

Beginning at 18th level, you can call upon the full might of your bloodline and status as a Purple Dragon Sorcerer of Zubea and gain the ability to turn into an Adult Deep (Purple) Dragon once per long rest. The ability works just as Polymorph would, but can only be used on yourself and to turn into an Adult Deep (Purple) Dragon.