Whimsical Wardrobe

You cause the outfit worn by a creature of your choice within range to magically change form. When a creature that is wearing the affected clothing makes a Dexterity-based ability check, they may choose to roll 1d6 before making the roll. They can then add the result of the 1d6 to their Dexterity roll, or choose to roll their Dexterity roll with advantage. The creature must choose which option to use before making the roll. The spell then ends. Can only be used once every long rest.