Brain Freeze

You make a target of your choice feel a sharp, chilling headache. That target must make a Constitution saving throw. The target is immune to this spell if they are resistant or immune to psychic damage. On a failed save, the target takes 2d8 damage, either Cold or Psychic depending on which would be higher. The target also has disadvantage on their next attack roll, skill check, or saving throw against any effect other than this spell. On a successful save, The target takes half damage and does not receive disadvantage on the previously mentioned rolls.

At Higher Levels: When you cast this spell with a 2nd level spell slot or higher, the target takes and extra 1d8 damage per spell slot level.