There are three major talent categories: Mystic, Warrior and Healer. Each has their own physical characteristics and each has their own set of codes and regulations under which the Druids have dictated they may function. Not all become full Druids, most function within the wider context of the Kingdoms.
Healers range from full empathic to those who can diagnose and treat illness by merely running their hands over the patient. Some deal with children while others prefer the company of the elderly. Healers are born with grey eyes, which vary in shade by the intensity of the illness.
Warriors come in two types: Blood Warriors and War Masters. Blood Warrior is the term given to the Northern Tribal Warriors, recognition of the purity of their human blood and the evolution of their natural skill into an inborn trait. While not all Northerns are Blood Warriors all Blood Warriors are Northerns. (Say that fast five times!) The most identifying characteristic of Blood Warriors is their eyes. At night, the white of their eyes, along with their iris, become black to help absorb the maximum ambient light. The night vision of a Warrior is regarded as the keenest eyesight among humans.
War Masters are those from the other Kingdoms who demonstrate a natural ability with a variety of war related ares: tracking, battle strategy, swordsmanship, assassination, etc. Although these are skills which can be taught, to be a War Master the acolyte must show talent above and beyond that of regular humans.
Humanity has changed, grown beyond their restrictive natures, to embrace these new traits as simply a continuation of man's existence. This was only partially true. Genetic differences between them and us would be non-existent. The thousands of years of nuclear exposure, though filtered through the air systems in the Sanctuaries. still infused humans with new abilities. Each person is cataloged as soon as they being displaying their particular talent. this is another duty of the Druids, maintaining a roster of each talent and bloodline.