Lightning of Hutijin

You learn to call on Lightning from hell to serve your commands. You gain the following benefits:

• Increase your Intelligence or Charisma score by 1, to a maximum of 20.
• When you roll Lightning damage for a spell you cast, you can reroll any roll of 1 on the lightning damage dice, but you must use the new roll, even if it is another 1.
• Whenever you cast a spell that deals lightning damage, you can cause current to wreathe you until the end of your next turn. The lightning don’t harm you or your possessions, and for the duration you gain +1 AC as your reactions are enchanced. While the crackling lightning are present, any creature within 5 feet of you that hits you with a melee attack takes 1d4 lightning damage.