The Bound Dragon

Dragons never share their power. Good or evil, they are covetous creatures building hoards of their own, in secret or with intention to draw in would-be thieves to make a meal of. There is, however, one great serpent, born directly of her Lady, the avaricious, Tiamat, but caged and shackled by none other than the Platinum Dragon himself. In order to give birth to a new Dragonborn, Bahamut must  grand a divine dragon scale to initiate the change. However, even he is unwilling to part with his own power, and so he has chained the evil daughter of Tiamat, stealing her scales as needed to grand power to those he deems worthy.

She, however, is not as restrained as he believes her to be. She sometimes reaches out to adventurers in the other planes away from her cage, granting them the little power she is able to squeeze out between her shackles, and bidding them to find her and cut through her bonds.

Expanded Spell List

The Fiend lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Draconic Expanded Spells

Spell Level	Spells
1st	sanctuary, shield
2nd	flame blade, warding bond
3rd	lightning bolt, protection from energy
4th	fire shield, secret chest
5th	passwall, planar binding

Shielding Scales

Starting at 1st level, a shimmering network of dragon scales ripples across your skin each time you take damage. Rather than using your dexterity modifier for calculating your armor class, you instead consider your constitution modifier. You may add this bonus, regardless of which type of armor you wear, with a maximum of up to +3. In addition, these phantasmal scales help you prevent being captured or held  against your will. You gain advantage on saves against being grappled or restrained in any way.

Armed to the Teeth

Your patron has gifted you with the knowledge to better protect yourself in your pursuit of slicing their shackles. You gain proficiency in medium armor, heavy armor, shields, and martial weapons.

Chainbreaker

Your patron's desire to be free of her permanent shackles has granted you the ability to lock and unlock objects at will. You have gained the ability to cast Knock and Arcane Lock at will without utilizing components or a spell slot.

Elemental Bane

Your patron's particular affinity with the elemental has begun to rub off on you. Starting at 6th level, you can channel this ability to give yourself resistance to acid, cold, fire, lightning, poison, and thunder damage. This resistance lasts for 1 minute.

Once you use this feature, you can’t use it again until you finish a short or long rest.

Magic's Many Heads

Your patron is a master of the elements. She has bestowed this knowledge upon you, granting you otherworldly transmutation abilities with your spells. Starting at 14th level, when you cast a spell that deals a damage type from the following list, you may use your bonus action to change that damage type to one of the other following types: acid, cold, fire, lightning, poison, thunder.