New Cantrip: Consecrated Ground

Abjuration cantrip
Casting Time: 1 action
Range: Self (10-foot radius)
Components: V, S
Duration: Instantaneous
You consecrate the ground on which you stand, dealing 1d4 radiant damage in a 10-foot radius around you to each of your enemies. Undead and fiends in the radius take 1d8 radiant + casting modifier damage. A Charisma save negates this damage.
5th: 2d4/2d8 + casting modifier
11th: 3d4/3d8 + casting modifier
17th: 4d4/4d8 + casting modifier