Withered One

The Withered Islands of Xendar were and still remain a place for mages to test and experiment with spells and magic. Said tests have taken a toll on the islands, leaving them forever scarred and in turn, affecting the residents and their daily lives. To survive the island–let alone call it home, these individuals have adapted and have learned to navigate around the many magics and leftover incantations. They have learned to live in such a challenging environment, and the constant interactions they have had consequently resulted in the magic transferring over to the residents, granting them a natural affinity to magic at the cost of mass scarring.
Skill Proficiency — Investigation or Stealth.   Choose one of the following Damage Types: Acid, Cold, Fire, Force, Lightning, Necrotic, Poison, Psychic, Radiant, or Thunder. Any damage you take of the chosen type is reduced by an amount equal to your Proficiency Bonus.   You know the Chaos Bolt spell, which you always have prepared. You can cast it once without a Spell Slot, and can have the Damage Type for the spell be the Damage Type you chose for this background. Once you cast the spell this way, you can’t do so again until you finish a Long Rest. Intelligence, Wisdom, or Charisma is your Spellcasting Ability for these spells when you cast them with this trait (choose when you select this background).