Boon of Spell Accuracy

You have uncanny aim with attacks that rely on precision rather than brute force. You gain the following benefits:

• Increase your Dexterity, Intelligence, Wisdom, or Charisma score by 1, to a maximum of 20.
• Whenever you have advantage on a spell attack roll using whichever ability you chose to increase with this boon (Dex, Int, Wis, or Cha), you can reroll one of the dice once.