You have tapped into the shapeshifting ability of your draconic heritage. You gain the following benefits:

• You can cast polymorph on yourself at will, with the following modifications: You can transform into any creature that has a CR less than or equal to your level minus 3. You automatically succeed on checks to maintain concentration, but you lose concentration if you begin concentrating on another spell.
• Twice per long rest, you can, as an action, transform into a dragon hybrid for 1 minute. You grow wings and gain a flying speed of 30 feet. If you already have a flying speed, it increases by 30 feet.