You whisper a revelation of inconceivable truth into the mind of a creature within range. A creature with an Intelligence score of 2 or lower can't be affected by this spell. A target takes 4d8 psychic damage on a failed save, or half as much damage on a successful one.   After a failed save, a target is haunted by the whispers of a greater understanding until the end of your next turn. During that time, it rolls a d6 and subtracts the number rolled from attack rolls or saving throws it makes.