Word of radiance

(a holy symbol)
You utter a divine word, and burning radiance
erupts from you. Each creature of your choice
that you can see within range must succeed on
a Constitution saving throw or take 1d6 radiant
damage.
Damage increases by 1d6 when you reach 5th
level (2d6), 11th level (3d6), and 17th level (4d6).