The Astral Archive #653

The Willbreaker: "Unlimited destruction is not the only tool of the Court. Sometimes, when it deems a world too valuable to be razed - for whatever arcane reason that might be - it sends the Willbreaker. It is a being not dissimilar from the Mysterious One known as the Monarch - it also conquers the minds of those present on the world where it is sent. From there, it forces the entire population to perform as the Court Eternal sees fit. Questions remain, though. Why is it used so sparingly? Why was it never employed during the great wars against the First Dreamers?"