Sky Serpent Bolt

This azure bolt is carved in the shape of an undulating snake, its bared fangs framing the point of its head. When an activated sky serpent bolt successfully hits a target, the bolt takes the form of a snake made of pure lightning, dealing 2d12 electricity damage to all creatures in a 30-foot line (DC 19 basic Reflex save) starting from the target. If you spent 2 actions to activate the sky serpent bolt, then the line is 60 feet long, and at a single point in the line, you can change the remainder of the line's path by up to a 90-degree angle.