Dragon Priest

An army of warriors lead by a Paladin stand in
front of the main gate, attempting to break it
down. Then, the gate opens. In caution, the
entire army steps back a bit. But to their
surprise, one man dressed in hooded robes
steps forward. The robed man pulled down his
hood and stared faced to face with the army.
Then, he took a deep breath in. The Paladin was quick to
react. He jumped to the side as fire shot out at the army.
Within seconds, the entire army, including the Paladin, were
scorched to death by the fire of a breath attack.
Dragon Priests are powerful masters of the arcane arts
who have dedicated their lives to serving powerful Malicious
Dragons who wish enslavement or death of the humanoid
races. The Dragon Priests are around to take the world by
storm, or by the fire of many powerful breath attacks.

Dragon Aspect

The power of a Dragon flows through you offering you its protection. This boosts is temporary but + 100% health and + 20% attack, AC, and Magic. This ability can be activated once a battle. 

Wings

At 10th level, a pair of draconic wings sprout out of your back.
Your wing span is equal to twice your height and your flying
speed is equal to twice your walking speed. You can only use
your wings if you aren’t wearing armor and backpacks or are
wearing armor and backpacks geared for your wings. You can
summon and use your wings twice per short or long rest.

Dragonic Soul

At 14th level, your draconic side shows and doesn’t go away this time. Your nails grow into talons, teeth into fangs, and you even grow a tail. Your talons deal 1d8 + 4 slashing damage. Your fangs deal 1d8 +3 piercing damage. Your tail deals 1d10 + 2 bludgeoning damage. A Dragon uses all these attacks together, or you can choose to use them separate.