The Dragon

You’ve concluded a pact with an Ancient dragon : he can be colored or metallic but he wants power and use you as a tool to achieve this goal : gifting you powerful capabilities.

Draconic Powers

When you create your character choose the Dragon to which you have allegiance then you gain Resistance to the associated type of damage and the Breath corresponding.You can also speak Draconic.

At level 6th you gain Dragon Wings : You gain a 60ft flying speed.

Black or Copper Dragon

You gain resistance to Acid and can spit Acid 

Blue or Bronze Dragon

You gain resistance to Lightning damage and can breath Lightning.

Dracolich

You can spit negative energy and gain resistance to necrotic damage.

Dragon Wings

At level 6th you gain 60ft flying speed. 

Gold or Red or Brass Dragon

You can spit fire and gain resistance to fire damage  

Green Dragon

You gain resistance to poison damage and can exhale poison 

White or Silver Dragon

You can exhale frost and gain resistance to cold damage 

Dragon Scales

You gain +6 to your AC while unarmored

Draconic Surge

Starting at level 10th you can 2 times /rest add 3D8 damage of your patron’s type to a spell or weapon attack.

Draconic Boon

At level 14 :

If you’ve chosen Pact of the chain : you can make your familiar attack. 
If you’ve chosen Pact of the Blade : you can make your Draconic Power attack after attacking with your pact weapon

If you’ve chosen Pact of the Book : You can add two spells of 6th level in it and you gain one spell slot to cast them.