Prerequisite: Expert Enchanter
With a nuanced touch, you can manipulate even the smallest ebbs and flows of an item’s magic.

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

• When you make an Enchanting check with a skill with which you are proficient, you have advantage on the roll.

• When you roll for a quirk’s random element (such as damage type, skill, or creature type), you can roll the die twice and choose either result.

• Each hour you spend enchanting an item counts as 3 hours towards the item’s completion.

(source Heliana's guide to monster hunting)