You can see in dim light within 60 ft. as if it were bright light, and in darkness as if it were dim light. You can't discern color in darkness, only shades of gray.

Your Wisdom increases by 2, and your Dexterity increases by 1.

You appear to age to adulthood at a similar rate to the form you've been stuck in, but will remain an adult for centuries before showing signs of further age. You live to around 4400 years old.

Per your heritage, you are typically aligned to Lawful Good, with a strong desire to help those around you, with no interest in having the credit for it. That said, the circumstances of your locked form could perhaps sway you to other alignments.

Having been turned into a medium humanoid, your size is medium as well.

Your base walking speed is 30 feet and base swim speed is 15 feet, as you naturally move through water with ease.

You can speak, read, and write Common, Draconic, and one other language of your choice (most likely that of the race you've been form locked to).

Once per long rest, when you fail a saving throw, you can choose to succeed instead.

Despite being restrained by your limiting form, you are still resistant to fire damage, and can cast the Fire Bolt cantrip at will.

You can eat just about anything, but your preferred diet consists of gold, pearls, and gems. Thankfully, you don't need to gorge yourself on such wealth to feel satisfied. Gifts of treasure that you can consume are typically well received, as long as they aren’t bribes. For every 100g worth you eat, you gain the benefits of 1 hour of rest.

You can communicate telepathically with any creature within 30 feet of you that knows a language, so long as it is asleep. You enter its dreams appearing in your true dragon form. You have advantage on Intelligence, Wisdom, and Charisma checks made within the dream against the dreamer's corresponding stat. Failing any of these checks immediately ejects you from the dream and awakens the dreamer.