New as supplied by Privateer Press

Ferocious two-headed canines whose frames are thick with muscle, argus are keen hunters. They are as impossible to elude as they are to surprise, as they constantly survey the terrain with their acute vision. While their two powerful sets of jaws are an asset in any fight, these beasts are equally valued for their paralyzing bark. This immobilizing howl can stagger even the mightiest of enemies, leaving them open for the kill.