The Dragon

You have made a pact with a draconic creature in exchange for power. Whether its goals are malevolent, benevolent or otherwise depends on the individual patron. Draconic creatures that may create pacts with mortals for power include Tiamat, Bahamut, Ancient dragons and Dragon Turtles.

Elemental Gifts

Your Eldritch Blasts are imbued with the elemental power of dragons. You may choose one of the following damage types at the end of a short or long rest. Until your next short or long rest, that damage type becomes the damage of your Eldritch Blast. (Fire, Acid, Cold, Poison or Lightning)

Draconic Surge

You feel the power of your patron surge through your veins.

When you make an attack with the same damage type as the chosen type from the Elemental Gifts feature you may roll an extra die, corresponding to the damage die of the spell, and add the roll to the damage of the spell.

You may use this ability a number of times equal to your proficiency bonus.

Draconic Resistance

Starting at 10th level, you gain resistance to the damage type chosen by the Elemental Gifts feature. The resistance lasts until the next short or long rest and changes depending on the damage type currently chosen by the Elemental Gifts feature.

At 16th level, you gain immunity to the damage type instead of resistance.

Elemental Maelstrom

Starting at 14th level, you can summon the innate magical power of the dragons into a breath weapon.

Once per long rest, you can use a breath weapon attack that deals damage to every enemy within a thirty foot cone as the energy bursts from your mouth. Everything within range must make a DC18 Dexterity saving throw or take 6d10 of the chosen damage type from the Elemental Gifts feature, half damage on a successful save.