Portal

A Portal is a Necron starship weapon system that is mounted on Cairn-class Tomb Ships, Scythe-class Harvest Ships, and Jackal-class Raiders. Necron Portals are vast stone gateways mounted within the heart of a Necron ship, and are able to be used for boarding enemy vessels. More precise than conventional Imperial teleporters, they are most commonly used to flood enemy ships with a relentless host of Necron Warriors and swarms of Canoptek Scarabs.