Scent of Sight (Rank 2) Edit
The werewolf can compensate for her vision completely by using her sense of smell. She can attack invisible creatures normally or navigate roughly in absolute darkness. Wolf-spirits teach this Gift.
The player rolls Perception + Primal-Urge against a Storyteller-determined difficulty that depends on how powerful local smells are. The Storyteller should require rolls only when something could cause the Garou to lose his opponent's scent (such as if the opponent runs through water or into a reeking alley).
Other terms for this gift are: Restless Waters
Sources: 3rd ed WWtA Corebook