Rank 2 Galliard Black Spiral Dancer Gift
Setting a particular quarry in her mind, the Black Spiral Dancer crafts a howl specifically designed to elicit terror in her prey. If her victim can hear the howl, it strikes terror into his heart, haunting him whenever he tries to find rest. A Nocturna teaches this Gift.
System: The player spends a Gnosis point and rolls Charisma + Primal Urge (difficulty 7). If the desired target hears the howl he will be jolted awake if asleep, and rendered unable to sleep for the next (successes x 3) hours; every time he attempts to rest, the howl will echo in his ears as though uttered from mere feet away. The terror increases the difficulty of most Mental and Social actions by +2 (maximum 9) until the character can sleep.
Source: Book of the Wyrm W20