Due to an unlikely combination of a werebear bite and a dragon god saving you the magics of both collided and resulted in your new abilities. 

•You can turn into a were-dragon form once per long rest, the transformation last for 10 minutes, you will gain more uses as you reach certain levels, at level 5 you will have 2 transformations, 3 at level 11, and 4 at lv 20

•While in this form your strength, constitution, and dexterity are raised to 14 unless already higher.

•You gain resistance to one element related to the dragon that spared you.

•You gain a breath attack based on your element, the damage is 2d6. 

•When you reach lv 11 your stat increase will be 16 and your breath attacks will deal 3d6.

•When you reach lv 20 your stat increase will be to 18, your breath attack will deal 4d6, and you will gain a 2nd use of your breath attack.