Packmasters are those Skaven who tend to the warbeasts of Clan Moulder. Packmasters make use of whips and wicked mechanical devices and to best control the beasts in their responsibility. These tools are also weapons in their own right. One such tool is the things-catcher, a spiked polearm which operates much like a clamp. Although primarily associated with Clan Moulder, Clan Krizzor, a warlord clan, has developed the ability to train their own packmasters. As with their creations, Clan Moulder will usually lease teams of packmasters to other Skaven clans.