Astral Pulse

You unleash a powerful pulse of radiant energy in a 20-foot radius centered on a point within range. Each creature within the radius must make a Dexterity saving throw. On a failed save, a creature takes 10d6 radiant damage and is pushed 15 feet away from the center of the pulse. On a successful save, the creature takes half damage and is not pushed.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 for each slot level above 5th.