Divine Fulmination

Displaying your holy symbol you speak a holy word which blasts the wicked with radiant force in range. Creatures that can hear you must make a Constitution saving throw or take 1D8 radiant damage half as much on a successful save.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).