You inhale deeply. You have advantage on the next ability check you make that relies on smell, and you can track creatures by scent. When you reach 4th level as a spellcaster in one of the classes above, this spell gives you an increasingly acute ability to identify the source of scents or strange odors. When you reach 5th level, whenever you make an ability check that relies on smell, you can treat a d20 roll of 7 or lower as an 8. At 11th level, a roll of 10 or lower is treated as an 11, and at 17th level a roll of 13 or lower is treated as a 14.