Draconic True Shift

When cast by a Draconic Bloodline Sorcerer, the caster polymorphs into a dragon of their corresponding type. All items you are carrying that are below Artifact rarity meld into your new form. You adopt all of the statistics and abilities of your corresponding dragon, with a few exceptions. You retain your INT, WIS, and CHA scores; as well as your proficiencies and languages. Additionally, you do not gain its legendary actions, lair actions, or mythic actions. The age of the dragon is based on your character level, you may choose whatever age has a CR less than or equal to your character level. Should your chosen dragon have the Change Shape ability, you are only able to transform back into your original shape with it. When you do so, you have access to all of your items that melded when you activated this ability. This transformation will last until dispelled over the course of a 10 minutes, or the caster's hit points is reduced to 0. This spell cannot be dispelled by anything less than a Dispel Magic cast at 10th level, or a wish spell.

The caster assumes the average hit points of their corresponding dragon's age and type, and when it reverts to its normal form, the creature returns to the number of hit points it had before it transformed. If it reverts as a result of dropping to 0 hit points, any excess damage carries over to its normal form. As long as the excess damage doesn't reduce the creature's normal form to 0 hit points, it isn't knocked unconscious.

After the caster reverts back to their normal form in any way, they can make a DC 30 Constitution saving throw or suffer 2 levels of exhaustion.