Celestial Mage

You are a Celestial Mage, able to summon powerful Celestial Spirits from their keys. They all have ranks and the highest ranking Celestial Spirits are the Zodiac Spirits. The higher their power the more powerful and human they can be. It is rare for Celestial Mages to fight alongside their Spirits if they are powerful, but some keys can be bought, however, Some higher-ranking spirits including the Zodiac Spirits need a contract in order to be used, but that can be filled in later if a situation would arise. Most of the more powerful Celestial Spirits will come to the mage instead. As long as you have the will to properly take care of them, it does not matter if you are a Dark Mage or a Good Mage. There are many good guilds such as Fairy Tail, Blue Pegasus, and many others. Of course, there are a good amount of Dark Guilds as well.