Lightning Dash

For an instant, you transform yourself into a being of pure lightning and fly forward, shocking anyone in your way. You propel yourself forward in a 30-foot line. You can move through creatures during this movement, and this movement doesn't trigger reactions that are triggered by movement. Each creature you move through takes (((your level − 4) ÷ 3, rounded down) + 2)d12 electricity damage with a basic Reflex save against your class DC. You return to your normal form in the final square of the line. If you're in the air, you fall unless you have a fly Speed.

Level (+3) The length of the line increases by 5 feet, and the damage increases by 1d12.