When a character is subjected to an effect that causes intense mental stress, Psychic damage is the best way to emulate that effect. The Sample Mental Stress Effects table provides a few examples of such effects, with suggested saving throw DCs and damage. Mental stress can usually be resisted with a successful Wisdom save, but sometimes an Intelligence or Charisma save is more appropriate. On a successful save, a character might take half as much damage instead of no damage, at your discretion. Sample Mental Stress Effects Example Save DC Psychic Damage A character ingests a hallucinogenic substance that distorts the character’s perception of reality. 101d6 A character touches a fiendish idol that tears at the character’s mind, threatening to shatter it. 153d6 A magical trap flings a character into the Far Realm until the end of that character’s next turn. 209d6