Astrologer Astrologers were unique wizard s in Zakhara who used the constellation s to enhance their spells and other powers . Requirements . Due to the strict nature of their unique way of practicing magic , astrologers tended to be very ordered and lawful individuals . Role . These wizards often had the reputation of being mad scientists and were regarded with a healthy mixture of respect and fear . Because they needed a wide variety of expensive and rare equipment in order to fully function , astrologers usually hailed from wealthy families or possessed other connections to wealthy individuals . Astrologers always constructed their laboratories far from cities . Many Zakharan rulers who desired to have an astrologer as a member of their court looked upon them with disfavor because of this , because they believed the astrologers were being reclusive to thumb their noses at others . This was not the case . Astrologers built their towers far from cities because the light produced by cities during the night impacted the astrologer ' s work in a negative manner by making it harder for them to properly view the constellations . In addition to being skilled in studying the constellations , most astrologers were very proficient in gem - cutting , navigation , and possessed a high level of artistic ability . Possessions . As far as mundane equipment went , astrologers could use the same weapons as other mages . They never wore armor . Once they established themselves in their own tower or laboratory , an astrologer had access to a large number of bizarre scientific apparatus . Benefits . In addition to casting spells like mundane wizards , astrologers were able to " hang " spells on the constellations . To hang a spell an astrologer simultaneously studied the spell in question and the constellation upon which it would be hung . This extended the amount of time it took to learn the spell , but also greatly increased the speed at which the astrologer could cast the spell later on . After a spell was hung the astrologer could recall it instantly so long as the associated constellation was visible to the astrologer , allowing for casting even complex spells before others even realized a spell was being cast . There were twelve constellations in the Zakharan night sky , one for each of the Enlightened gods . Each constellation was only visible for a portion of the year , though there was plenty of overlap between them . Typically , any given constellation was fully visible for three months out of the year . A spell would remain hung on a constellation until it was used by the astrologer or until they dismissed it . Once a spell was hung the astrologer could not memorize that spell again until it was used . Hung spells did not count toward the number of spells an astrologer could memorize , freeing up their mental capacity to memorize more spells compared to other wizards . Hindrances . Due to the unique way they practiced magic , astrologers could only utilize scrolls written by other astrologers . Scrolls written by astrologers were not merely spells , but a complex diagram of how a particular spell related to the constellations . These scrolls were incredibly complex and required intimate knowledge to make use of them , barring non - astrologers from accessing the spell . Astrologers could only hang one spell on a constellation at a time . Also , they could not use a hung spell during the daytime . The orreries needed by astrologers to perform their magic were very expensive and required precise knowledge to properly calibrate . Calibration was a time - consuming process involving the use of expensive gems .