Cosmic Pulse

You open a rift to the astral plane, unleashing a wave of gravitational disturbance. Each creature in a 30 foot cone must make a Strength Saving Throw against your Spell Save DC, taking 8d8 force damage and being pushed 20 feet away from you and falling prone on a failed save, and taking half as much damage with no push on a successful one.

When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 5th.