Shadowed Observer

You have honed your abilities in stealthy observation, granting you the following benefits:

• Increase your Intelligence score by 1, to a maximum of 20.
• Choose one skill in which you have proficiency. You gain expertise with that skill, which means your proficiency bonus is doubled for any ability check you make with it. The skill you choose must be one that isn’t already benefiting from a feature, such as Expertise, that doubles your proficiency bonus.
• Learn the Invisibility spell, usable (without material components) only on yourself once per long rest.