# Skill Empowerment *5th-level, Transmutation* - **Casting time:** 1 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](/3-Mechanics/CLI/lists/list-spells-classes-artificer.md); [Bard](/3-Mechanics/CLI/lists/list-spells-classes-bard.md); [Sorcerer](/3-Mechanics/CLI/lists/list-spells-classes-sorcerer.md); [Wizard](/3-Mechanics/CLI/lists/list-spells-classes-wizard.md) *Source: Xanathar's Guide to Everything p. 165*