Chaos Caster

You've learned to accept the chaos of the Weave into your spellcasting. Increase your Intelligence or Charisma by 1. Each time you cast a spell of 1st level or higher, roll a d20. On a roll of 20, you trigger a Wild Magic Surge. If you are a sorcerer with the Wild Magic bloodline, you instead bolster your class feature by triggering a surge on a roll of 1 or 20.