> **Casting Time:** Action > **Range:** Touch > **Components:** V, S > **Duration:** [[Concentration]], up to 1 hour Your magic deepens a creature's understanding of its own talent. You touch one willing creature and give it Expertise in one skill of your choice; until the spell ends, the creature doubles its Proficiency Bonus for ability checks it makes that use the chosen skill. You must choose a skill in which the target is proficient and that isn't already benefiting from an effect, such as Expertise, that doubles its Proficiency Bonus. **Classes:** #Artificer, #Bard, #Sorcerer, #Wizard