Zodiac ( term ) The zodiac is a recurring series of symbols in the " Final Fantasy " series . It refers to the twelve zodiacal constellations : Aries , Taurus , Gemini , Cancer , Leo , Virgo , Libra , Scorpio , Sagittarius , Capricorn , Aquarius and Pisces . Ophiuchus is also a zodiacal constellation , though often not counted , but most games in the series that include the zodiac make note of it in some way . The thirteen signs of the " Final Fantasy " zodiac appear on the " Ivalice Alliance " logo . The summon Zodiark is named after the zodiac . Appearances . " Final Fantasy IX " . Queen Stella , an aristocrat in the city of Treno , spends her days collecting the twelve Stellazzio coins , each named after a zodiac sign . Once the player finds her one , she will give a prize . After all twelve are found , she will note she feels like another one exists somewhere . This is the Ophiuchus coin . By reading the coins ' descriptions in the key item screen in order , the player can uncover the Stellazzio story . The symbols for zodiac signs are seen in concept artwork for the metal frame sphere in Doctor Tot ' s study . " Final Fantasy XI " . There are thirteen subligaria , each named after zodiac symbols ( including Ophiuchus ) , obtained from the Fomor s in dungeons around Tavnazia . These subligaria are used in a sidequest to obtain special level 50 armor . In addition , the Federation of Windurst ' s Caster Companies are named after zodiac symbols . In the Japanese version , the various models of Automaton are named after the signs of the zodiac : the Harlequin is the Cobalt Aries , the Valoredge is the White Cancer , the Sharpshot Z - 500 is the Hazel Sagittarius , the Stormwaker Y - 700 is the Carmine Scorpio , the Spiritreaver M - 400 is the Flint Capricorn , and the the Soulsoother C - 1000 is the Pale Aries . " Final Fantasy XII " . The thirteen Espers each represent one of the thirteen zodiac signs . The opposite Scions of Light , which never appear in the game , also represent the signs . The twelve jobs of the " Zodiac Job System " each refer to a sign of the zodiac . In the English localization Zodiac equipment is the most powerful equipment , namely the Zodiac Spear and Zodiac Escutcheon . " Final Fantasy Tactics " . The signs of the zodiac play both a role in gameplay and in the plot . The legends of Ivalice tell of the twelve Zodiac Braves who each wielded an auracite , holy stones said to be able to perform miracles . Zodiac compatibility chart . It is the destiny of all creatures to be born under a particular sign of the zodiac . The interactions of man and monster alike are governed by the compatibility of these signs . When the twelve are arranged in a circle , and straight lines drawn to form squares between them , signs at the corners of a given square are of poor compatibility . When lines of equal length are drawn to form a triangle , signs at the triangle ' s points are of good compatibility . Gender plays a significant role in determining compatibility . Units with opposite signs and the same gender have the poorest compatibility . Units with opposite signs and opposite genders have excellent compatibility . Monsters are considered to be of opposite gender to both male and female human s , but the same gender as other monsters . Compatibility affects both the amount of damage dealt to enemies and the success rate of magicks . For example , if a unit attacks an enemy of good compatibility with a weapon , it will deal 1 / 4 more damage than it normally would . Excellent compatibility would increase the amount of damage by 1 / 2 . On the other hand , damage dealt to enemies of poor compatibility is reduced by 1 / 4 , and of extremely poor compatibility , by 1 / 2 . All playable characters and monsters are given a set zodiac sign , except for Ramza Beoulve , whose birthday and sign are chosen by the player . Zodiac compatibility plays a role in determining the effectiveness of most abilities . Ivalice calendar . The in - game calendar is divided up into twelve months , each one named after a sign of the zodiac . Serpentarius ( Ophiuchus ) is not counted . Story . The signs of the zodiac are each represented by one of the thirteen auracite crystals , the Zodiac Stones . They are related to the Lucavi demons , who use them to enter the world of Ivalice to do evil . The stones can possess humans holding them at the moment of their death and forever take control of their bodies . When the need arises , the possessed person can transform into the Lucavi monster . The Zodiac Stones work to transport good as well , since they respond to Rapha ' s grief over the death of her brother , Marach Galthena , and return him to life . Ramza can choose to use some of the Zodiac Stones he recovers to activate lost technology . The Serpentarius stone counts as a Zodiac Stone . " " . A faction of characters in the game are named after constellations , with Taurus and Kapel respectively representing Taurus and Capricorn .