The Chaos Daemons are manifestations of the pure psychic energy that exists within the Warp. They can enter the material world when summoned by Chaos worshippers in battle, or through a breach or overlap of the two dimensions, or by tapping into the abilities of a Psyker. Daemons are difficult to kill with conventional weapons and are constantly harvesting souls. Most dedicate themselves to one of the four Chaos Gods - Khorne, Nurgle, Slaanesh or Tzeentch and fight alongside armies that have been seduced by Chaos. The Daemons are a host of terrifying apparitions, ranging from mighty greater daemons to the rank-and-file lesser daemons to horrifying animalistic beasts.