Terminal Smite

You infect your strike with decay powerful enough to bring even supernatural vitality to an end.

The target takes an extra 6d8 Acid or Poison damage (your choice) and must make a Constitution saving throw.

On a failed save, until the start of your next turn, the target:

• can't regain Hit Points;
• can't gain Temporary Hit Points; and
• can't benefit from a feature or effect that would cause it to remain at 1 Hit Point instead of being reduced to 0 Hit Points.

On a successful save, the target suffers only the additional damage.