Your patron is an ancient and legendary dragon, the location of which is known only to you and a select few other chosen. They have sent you into the world to expand their influence in the outside world and, so that you may help grow their horde and ensure their safety from those whom may seek it. In exchange they have granted you small modicum of their powers in order to expand your own influences and fortunes.   

Draconic Aspect

This is where you choose what color of dragon is your patron and thus the boons you will be given as a result.

Black

You Patron is a Black dragon, and creature of acid and greed. At first level you gain the Acid Breath feature and can learn the Acid Splash cantrip. Inheriting a fraction of your patrons fury.

Acid Breath:

A sudden exhalation of caustic liquid issues from you dissolving all in its path. As an action you may breath a 30 foot line of acid that deals 2d10 acid damage on a failed save or does half damage on a success. You may do this once per short rest. This feature increase to 4d10 at level six, 6d10 at level ten, 8d10 at level fourteen, and 10d10 at level eighteen.

Blue

Your patron is a blue dragon, and creature of lightning and cunning. At first level you gain the Lightning Breath feature and can learn the Shocking Grasp cantrip. Inheriting a fraction of your patrons fury.

Lightning Breath:

A sudden exhalation of lightning issues from you electrifying all in its path. As an action you may breath a 30 foot line of lighting that deals 2d10 lightning damage on a failed save or does half damage on a success. You may do this once per short rest. This feature increase to 4d10 at level six, 6d10 at level ten, 8d10 at level fourteen, and 10d10 at level eighteen.

Green

Your patron is a green dragon, and creature of poison and deception. At first level you gain the Poison Breath feature and can learn the Poison Spray cantrip. Inheriting a fraction of your patrons fury.

Poison Breath:

A sudden exhalation of noxious gas issues from you chocking all in its path. As an action you may breath a 15 foot cone of poison that deals 2d10 poison damage on a failed save or does half damage on a success. You may do this once per short rest. This feature increase to 4d10 at level six, 6d10 at level ten, 8d10 at level fourteen, and 10d10 at level eighteen.

Red

Your patron is a red dragon, and creature of pure fire and fury. At first level you gain the Fire Breath feature and learn the Firebolt cantrip. Inheriting a fraction of your patrons fury. 

Fire Breath:

A sudden exhalation of fire issues from you burning all in its path. As an action you may breath a 15 foot cone of fire that deals 2d10 fire damage on a failed save or does half damage on a success. You may do this once per short rest. This feature increase to 4d10 at level six, 6d10 at level ten, 8d10 at level fourteen, and 10d10 at level eighteen.

White

Your patron is a white dragon, a creature or pure cold and a lust for the hunt. At first level you gain the Frost Breath feature and can learn the Ray of Frost cantrip. Inheriting a fraction of your patrons fury. 

Frost Breath:

A sudden exhalation of cold issues from you freezing all in its path. As an action you may breath a 15 foot cone of frost that deals 2d10 cold damage on a failed save or does half damage on a success. You may do this once per short rest. This feature increase to 4d10 at level six, 6d10 at level ten, 8d10 at level fourteen, and 10d10 at level eighteen.

Draconic Scales

Your skin hardens and becomes more like that of your patron. When you are not wearing armor your armor class is 13 plus any dexterity modifier. 

Draconic Resistance

At sixth level you gain resistance to the damage type of your breath weapon.

Acid Resistance

You gain acid resistance as your bond with your patron grows stronger and you begin taking on more of their aspect and continence.

Cold Resistance

You gain cold resistance as your bond with your patron grows stronger and you begin taking on more of their aspect and continence.

Fire Resistance

You gain fire resistance as your bond with your patron grows stronger and you begin taking on more of their aspect and continence.

Lightning Resistance

You gain lightning resistance as your bond with your patron grows stronger and you begin taking on more of their aspect and continence.

Poison Resistance

You gain poison resistance as your bond with your patron grows stronger and you begin taking on more of their aspect and continence.

Draconic Form

You gain physical aspects of your patrons form, growing claws, horns, and a thicker set of scales. As an action you may transform into your draconic form for one hour. While transformed you gain immunity to the damage type of your breath weapon. Your claw count as natural weapons and magical weapons, they do 1d6 plus your charisma modifier. If you chose pact of the blade then your claws count as your pact weapon so long as your transformed. Your armor class increases by half of your proficiency bonus while transformed.

Black Dragon Form

You gain acid immunity while transformed.

Blue Dragon Form

You gain lightning immunity while transformed.

Green Dragon Form

You gain poison immunity while transformed.

Red Dragon Form

You gain fire immunity while transformed.

White Dragon Form

You gain cold immunity while transformed.

Draconic Form Improvement.

Now when you transform into your draconic form you gain a flying speed of 60ft. Your claws now do 1d8 as well as 1d8 of the same damage as your breath weapon. You can now use the Frightful Presence action once, the DC of which is equal to your spell dc. In addition you may now stay transformed so long as you remain conscious and you may use your breath weapon a number of times equal to half of your proficiency bonus.