[@Ghost Queen]

Makes sense, I did the same thing with the Phoenix. She has healing fire hands and 'immortality' - kinda. 

So my idea I will impart on you will be this: Take a look at general dragon lore and then choose one element on it to focus on specifically - be that their fascination with minerals/jewels, fire breathing, flight/wings, lizard status, etc. Take that and find a way to apply it to a generally humanoid form (as transforming into a giant lizard is most likely a no-no).

Find a unique but very notable weakness, and then find a very unique and notable ability.