Voidbringers

Voidbringers are the legendary creatures of the ancient Desolations. Their exact nature is unknown, but it is assumed they are part of the forces of Odium. According to the legends, they cast mankind out from the Tranquiline Halls to Roshar and, from there, they tried to force mankind out of Roshar to Damnation. Additionally, according to the legends, they were defeated during Aharietiam (The Last Desolation).

According to legend, the Shardblades that were first carried by the Knights Radiant uncounted ages ago, were gifts of their god, granted to allow them to fight horrors of rock and flame, dozens of feet tall, foes whose eyes burned with hatred. The Voidbringers. When one's foe had skin as hard as stone itself, steel was useless. Something supernatural was required.

Myths and legends tell that the Voidbringers came to annihilate. Their goal was to wipe civilisation from Roshar. They were specters, formless... some say they are spirits of the dead, others Spren from Damnation.

"They were creatures of terrible destructive power, forged in Damnation, created from hate."  - Kabsal, an Ardent of the Vorin Church