Power Surge (Rank 2) Edit
By speaking with electricity spirits, the Garou causes a blackout over a widespread area. An electricity elemental teaches this Gift.
The player spends one Gnosis point and rolls Wits + Science (difficulty 7). The number of successes determines how large of an area is blacked out. One success would black out a single room, while five would cut the power to a whole neighborhood.
Source: 3rd ed WWtA Corebook