Forbidden Secrets (MEHF)

Dark Gift Feat (Prerequisite: Ravenloft Campaign). From Ravenloft: Madam Eva's Hand of Fate, available on the DMs Guild.

You have learned dark and foreboding secrets that allow you to weave a menagerie of spells, but you are haunted by reminders of the knowledge you're burdened with. You gain the following features.

Unbound Arcana. You learn three cantrips and one 1st-level spell of your choice from any spell list. Intelligence, Wisdom or Charisma is your spellcasting ability for this feat's spells (chosen when you select this feat). Whenever you gain a new level, you can replace one of the cantrips you chose for this feat with a different cantrip.

Esoteric Knowledge. Whenever you take the Study action to recall information related to dark magic, evil artifacts, otherworldly horrors or the secrets of Ravenloft, you can choose to give yourself Advantage on the check. You can do this a number of times equal to your Proficiency Bonus, and regain all expended uses when you finish a Long Rest.

Haunting Reminder. You find that something always reminds you of the harrowing knowledge you learned and the horrific things you have tried to repress. When you select this feat, roll on the Dark Reminders table to determine what it is. When you are confronted with your dark reminder, or when you roll a 1 on a Study action to recall information, you must make a Wisdom saving throw at the start of your next turn (DC 13 plus your Proficiency Bonus). On a failed save, you have the Frightened condition for one minute or until you can no longer perceive the reminder.

Dark Reminders (d6)

1. A significant NPC, such as a Darklord.
2. An occult or religious symbol.
3. A monster or otherworldly horror.
4. A certain phrase or string of words with a hidden meaning.
5. A remnant of a dark rite or an act of evil.
6. A supernatural phenomenon, such as the Mists.