Holy Word

You whisper a divine word under your breath, careful not to speak loudly, for such celestial power isn’t for the unworthy. Make a ranged spell attack against a target within range. On a hit, the target takes 1d8 Radiant damage. If the target is Fey, Fiend, or Undead, its Speed is reduced by 10 feet and it can’t take Reactions until the end of its next turn.

Cantrip Upgrade. The damage increases by 1d8 when you reach levels 5 (2d8), 11 (3d8), and 17 (4d8).