An Arc Scourge is a powerful lash-like weapon equipped with a multi-spectrum Disruption Field akin to the similar but far more potent technology deployed by the Necrons. The Arc Scourge may be used to strike multiple foes at once or coil round an enemy war machine and deliver a pulse that will incinerate and overload its systems. It is primarily used by the forces of the Adeptus Mechanicus from the time of the Great Crusade unto the present day. For the Mechanicus the Arc Scourge is a potent weapon of technobanishment, designed to target heretek war engines and exorcise their Machine Spirits with jolts of agonising lightning, disrupting all electronic and mechanical systems.
- The Horus Heresy - Book Six - Retribution (Forge World Series) by Alan Bligh, pg. 274
- The Gathering Storm - Part One - Fall of Cadia (7th Edition), pg. 132