From Tar Valon Library
Author: Leora Oldessroth
Forgers are creatures that are thick, slow-moving and shaped like a man. They look like they are hacked out of Shayol Ghul.
Forgers make the swords carried by Myrddraal.
Forgers are not truly alive; if carried any distance from Shayol Ghul they crumble and turn to dust or stone.
Forgers can be "killed" if they touch the water of the black water that runs through the valley.