You can take an action to cause any creature within your choice of a 30-foot by 5-foot line or a 15-foot cone to make a Dexterity save against your Constitution DC. On a failed save, a target takes a number of d6s of lightning damage equal to your proficiency bonus.
Once you use this feature, you can't use it again until you finish a rest or expend 4 mana points.
You have resistance to the lightning damage.
Whenever you gain a draconian trait, you can also choose from the following: