Heavenly Sweep

8th -level evocation

Casting Time: 1 action

Range: 90 feet

Components: V, S

Duration: 1 round

A beam from above streaks across the ground tracing a in a line that is 40 feet long, 1 foot wide, which reaches 40 feet high, leaving a glowing trail on any surface it crosses that pulses with light. Each creature you choose within the area must make a Dexterity saving throw. It takes 8d8 radiant damage on a failed save or half as much damage on a successful one.

At the end of your next turn, the trail left on the surface explodes in a 15-feet wide line centered on the traced path. Each creature within the explosion must make a Dexterity saving throw. On a failed save, the creature takes 6d6 radiant damage and is knocked prone. On a successful save, the creature only takes the bludgeoning damage.