You learn to call on cursed lightning to rebuke your enemies. You gain the following benefits:

• Increase your Intelligence or Charisma score by 1, to a maximum of 20.

• Whenever you cast a spell that deals lightning damage, you can cause lightning to wreathe you until the end of your next turn. The lightning doesn’t harm you or your possessions, and sheds bright light out to 30 feet and dim light for an additional 30 feet. While the lightning is present, any creature within 5 feet of you that hits you with a melee attack takes 1d4 lightning damage.