A Psyker is an individual of any intelligent species in the 40k universe who possesses some degree of psychic ability or powers. Like many of the denizens of the grim dark universe, you can draw your power from the extra dimensional realm known as the Warp to enforce your will upon the four- dimensional Materium. However, unlike your peers you will gain the opportunity to choose how big of a connection you desire to have with the Warp. Be warned, while a greater connection to the Warp will allow you to wield far greater powers than your peers, you gain greater attention from the many predators of the Warp, who won’t hesitate to consume your soul if given a chance.