Artisan Expert

Either by natural talent or a long time of training, you have not only become proficient, but an expert in the use of a certain tool!

• Increase one ability score of your choice by 1, to a maximum of 20.
• You gain proficiency in one artisan's tool of your choice.
• Choose one artisan's tool in which you have proficiency. You gain expertise with that artisan's tool, 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.