Lifeweb is one of the thirteen primary Arcanoi from Wraith: The Oblivion. Wraiths who know Lifeweb can use it to strengthen, weaken, or watch over Fetters.
Even though their powers revolve around one aspect of a wraith’s existence, their powers are surprisingly flexible. Not only can Monitors monitor their own Fetters, but examine those of other wraiths at will. Ties to Fetters can be severed, created, strengthened, or weakened. Monitors do not have an ability to directly fight or damage another wraith, but can be potent foes nonetheless.
A Fetter is one of the most important things a wraith can possess, and Monitors know this. Some Monitors choose to focus on the positive aspects of their abilities by helping weak wraiths strengthen what few Fetters they might have, or by keeping an eye on another’s Fetters. Others choose use Lifeweb as a force of destruction, working to destroy the Fetters of rivals, or to bribe weaker wraiths into forcing them to keep them from taking out one of their few remaining Fetters. Because of the potential for abuse, the Hierarchy keeps an eye on Monitors, although a few have managed to slip through the cracks of the bureaucracy.
A failure to use Lifeweb properly can range from the minor, such as following a bad link to a Fetter, to severe, where a Monitor manages to sever one of their own Fetters from them.
Lifeweb abilities during the Great War are the same as the basic abilities and standard powers with the following exceptions, which replace the skills of the same level or where noted.
Lifeline: A Monitor can create a "pseudo-Fetter" between two wraiths that allows them to work together.
Fetter Sentry: This allows a Monitor to put their own Corpus between themselves and a Fetter.
Torsion: A Monitor can send Pathos through the Fetter of a Spectre, reminding them of their humanity.