Nyadra'zatha

Nyadra'zatha, the Burning One, is the C'tan that wanted to set fire to a dimension that did not have oxygen. In the last years of the War in Heaven it taught the Necrons how to punch living stone portals into the Old Ones' Webway. Dolmen Gates are its gift and its arson.

Those gates let Szarekh's armies turn the enemy's highway into an invasion route and shortened a war that had already lasted gods. The Burning One got to carry eldritch fire into a space that was never supposed to host it. The Aeldari have been patching the damage ever since.

Shards of it still burn on battlefields. The original appetite was never for planets. It was for the road between them.