One of the many Stellazzio in the world. Leo was waiting for the sun to set into the ocean. Then Cancer showed up, and they began to fight. Into the ocean they fell.
The Leo Subligar is one of the thirteen Zodiac subligaria, which can obtained from a Fomor Dragoon in specific level-capped dungeons around Tavnazia. It is used to obtain the "Wyvern Mail", a heavy armor worn by Dragoons.
Leo is one of the twelve auracites. The Lucavi Hashmal, second in command under Ultima, dwells within it. Through circumstances unknown, the Leo Stone possesses prominent Knights Templar member Folmarv Tengille and embarks on a quest to restore Ultima to power. Folmarv collects and disperses other auracites to suitable hosts in to revive the Lucavi's power. After Ramza Beoulve collects eleven of the stones and corners Folmarv in the Airship Graveyard, the Leo Stone morphs the knight into Hashmal in a last bid to keep its mission alive.
Leo is also a zodiac sign used to determine damage compatibility between characters during battle. Leo has optimal compatibility with Aquarius, good compatibility with Sagittarius and Aries, and bad compatibility with Taurus and Scorpio. In the Ivalician calendar system, the month of Leo lasts 31 days and corresponds with the dates July 23 to August 21 of the real world Gregorian calendar.