Wither Limb (Rank 4) Edit
With a snarl and an angry gaze, the werewolf forces a target's arm or leg to twist, desiccate and wither, making it useless. Creatures with regenerative abilities will restore the limb to full function after one scene; otherwise, the effects are permanent. Snake-spirits, spider-spirits and other venomous spirits teach this Gift. Some werewolves even invoke spirits of disease to learn this Gift.
The player spends a Gnosis point and rolls Willpower (difficulty of the victim's Stamina + 4). The victim adds two to the difficulties of all Dexterity rolls. If his leg is affected, he can move at only half of his normal speed.
Sources: 3rd ed WWtA Corebook, Ananasi Breedbook