Master Crafter

Constant practice in your craft has made you a master with your tools:

• Choose an artisan's tool in which you have proficiency. You gain expertise with that tool, which means your proficiency bonus is doubled for any ability check you make with it. The tool you choose cannot also benefit from another feature, such as Expertise, that would double your proficiency bonus.
• When making an ability check using this tool, you can substitute your Intelligence for the called for ability.
• You learn the Shillelagh cantrip from the Druid spell list. Intelligence is your spellcasting ability for this spell. You can cast this spell on items that you create with your chosen tool.
• You can use your chosen tool as a spellcasting focus for any spell you cast that uses Intelligence as its spellcasting ability.