Changes

Once the Necrontyr accepted the C'tan's offer and their life-essence was encased in [[living metal]] bodies, their minds and senses became dulled until they became slaves of the C'tan. The C'tan used these warrior-slaves to harvest the lifeforms of the galaxy so the Star Gods could feast on souls and the newly christened Necrons served this purpose very well.¹

The C'tan had been working on a plan to cripple the Old Ones, and eventually it came to fruition. They burst into and destroyed the [[Webway]] discovered by the Old Ones. Without these portals, the Old Ones were unable to move troops throughout the galaxy. With the new races using so much Warp power for the purposes of killing, the benign creatures in the Warp mutated into the evil creatures they are today. At the precipice of victory, the [[Enslaver]]s emerged from the now-tumultuous [[Warp]] and forced the C'tan and their slaves back, by preying on the younger races and starving them of the precious lifeforce they need to feed upon. The C'tan began to consume their own kind, eventually leaving only four remaining who then went into stasis to avoid the onslaught and allow the galaxy to repopulate without the psychic swarm so they could emerge and reconquer their empire. However, this kindled a single-minded determination in the C'tan to eliminate the only threat to their conquest, the Warp. Thus began the Great Work, the severing of realspace and the Warp so that the C'tan would go unchallenged once again.¹