The fact that Phantom could use the threads that were usually the domain of the White Thread faction and a needle from the Gray Needle faction was, in itself, an alarming factor for the monsters of these lands.
However, not everyone realized that Adam never had the goal or even the ability to copy their abilities and techniques. He learned about the Forgotten Mills only recently, as well as about the three factions. They did not understand that all of Adam's abilities belonged only to him and originated only from his energy and the Silver Weaver, whose origin had been changed beyond recognition during Adam's long journey.
Unfortunately for Ureyn, he was one of those monsters. He was mistaken not only about Adam's abilities but also about his goal. It was unknown whether he could change that for the sake of victory.