Starburst

Evocation cantrip (illumination)

Casting Time: 1 action
Range: 60 feet
Components: V, S
Duration: Instantaneous

You cause a mote of starlight to appear and explode in a 5-foot cube you can see within range. If a creature is in the cube, it must succeed on a Charisma saving throw or take 1d8 radiant damage.

This spell’s damage increases to 2d8 when you reach 5th level, 3d8 when you reach 11th level, and 4d8 when you reach 17th level.