Unhinged Willpower (5e Spell)
From D&D Wiki
|Casting time:||1 action|
As an action, you transform your sheer willpower into a damaging force that's damage aligns with your alignment and choose a target within range.
Good - Radiant Neutral - Force or Psychic Evil - Necrotic
The target must resist your will with their own and make a Charisma save and does so with disadvantage if they're charmed. On a failed save, the target takes 1d8 damage that matches with your alignment, or half on a successful save.
The damage increases by 1d8 when you reach level 5 (2d8), level 12 (3d8), and at level 17 (4d8).