Although no Daemon's true name can ever be known, there has been talk for aeons of the one called 'Sarthorael'. Like all Lords of Change, the Ever-Watcher revels in his contriving and devious nature, hiding his true manipulative genius behind a screen of erratic and fickle behaviour. Yet Sarthorael is more than a mere Lord of Change - he is one of Tzeentch's favoured, sent to spread mayhem to those that the Great Changer deems deserving. Whilst the world of mortals should tremble when a Lord of Change appears before them, so too should Daemons be wary, for Tzeentch does not discriminate - all are fair targets in his game. And so Sarthorael is sent, watching and waiting, with all the craft and slyness of his master, to judge whether the End Times can really be brought about and, when the time is right, to see if those who stand upon the Chaos Wastes really have the strength to do it...
- Sarthorael is an original character created for Total War: Warhammer by Creative Assembly, with permission from Games Workshop.