Paws of the Newborn (Rank 5) Edit
With a glare and snarl, the Silver Fang strips her foe of any supernatural power. Many servants of the Wyrm have tried to employ their putrescent magic against the Fangs, only to realize that they face a mighty foe with only mundane methods of defense. A falcon-spirit teaches this Gift.
The player spends a Gnosis point and rolls Gnosis (difficulty of the target's Willpower). Each success removes all special abilities (shapeshifting, Gifts, any sort of supernatural or magical powers) for one turn.
Source: 3rd ed WWtA Corebook