Celestial Spirit

Celestial Spirits (星霊 Seirei) are Magical beings from their own separate universe, the Celestial Spirit World. Some wizards, called Celestial Spirit Mages due to their specialization in Celestial Spirit Magic, are able to summon spirits by opening their gates through the use of Keys. These Keys are separated into two classes: the more common Silver Keys and the extremely rare Gold Keys. Keys for Celestial Spirits are counted in Units (collectively without regard of Gold or Silver), and a Celestial Spirit Mage is noted by how many Units they have obtained. All Celestial Spirits are each named after a different astronomical constellation. Out of the 12 Gold keys, 10 of them are owned by Lucy Heartfilia.
   
Contracts and Rules
When a Celestial Spirit Mage receives a Key and opens its Celestial Gate for the first time, they have to set up a contract with the respective spirit. This contract consists of asking the spirit which days it can be summoned by the Mage. This simple agreement, much to the shock of Natsu and Happy, forms a dedicated, serious bond between the Spirit and summoner. However, under certain circumstances, i.e. during battle, a contract can be asked to be completed later.


Contracts can be broken if the Mage gets arrested, releases the spirit by him/her self, or dies. When a Celestial Spirit Mage summons a spirit, it appears directly next to them, as that's where the gates to the Spirit world had been opened. It's impossible to summon spirits elsewhere. The spirits must also abide by certain rules enforced by the Celestial Spirit King. The only rule that has been introduced in Fairy Tail so far is that a spirit may not directly or indirectly kill its summoner under any circumstances. When the gates are closed, it is required from both the summoner and the spirit to agree upon the gate's closure. However, spirits can also be "forced closed" in battle, which means they can be forced back into the Celestial World by the summoner's will, though not every Celestial Spirit Mage is capable of doing that.

Celestial Spirits also have different categories of sorts, that fall under the basic summoning conditions from their owner. For example, Loke summons himself most of the time without Lucy doing so herself, Virgo also has summoned herself once, as have Gemini and Horologium and if trust between the Celestial Spirit and the Owner is not an issue, contracts can be temporarily dissolved. It also seems that if the Celestial Spirit is strong enough, they can use their own Magic to stay in the Human World, when/if the contract is not in action. The strength of the Celestial Spirits is affected by the Magical strength of their summoner as Lucy once said that her spirits could become even stronger than Natsu if she trained more.
  
Known Celestial Spirits 
No Known Key

Neutral
Key	Name	Description	Picture
Unknown	Celestial Spirit King (星霊王 Seirei-ō)	He rules all of the spirit world and enforces the rules among all the spirits. He has the power to stop time in the human world.

  

Gold Keys

Gold Keys
Key	Name	Description	Picture
	Aquarius	Summoner: Lucy Heartfilia, Layla Heartfilia (formerly) "The Water Bearer" Aquarius is a mermaid carrying a jug of water. Lucy considers Aquarius her strongest spirit, even after she got Loke's key.
	Taurus	Summoner: Lucy Heartfilia "The Golden Bull" Taurus is a minotaur with black and white splotched skin, a nose ring and a black speedo, and belt. He wields a giant two-bladed axe.
	Cancer	Summoner: Lucy Heartfilia, Layla Heartfilia (formerly) "The Great Crab" Cancer has a crab-claw hairstyle with six crab legs coming out of his back. He wields a pair of scissors that he uses for attacking and haircuts.
	Virgo	Summoner: Lucy Heartfilia, Duke Everlue (formerly) "The Maiden" Virgo has a normal black and white maid outfit, with chained shackles around her wrist. She has the ability to dig holes underground.
	Sagittarius	Summoner: Lucy Heartfilia "The Archer" Sagittarius is a man wearing a horse costume much to Lucy's surprise with a great skill in archery.
	Leo	Summoner: Lucy Heartfilia, Karen Lilica (formerly) Leo "The Lion" appears as a man in a designer suit with his hair in the form of a lion's mane. He uses the Magic Regulus for combat.
	Aries	Summoner: Lucy Heartfilia, Angel (formerly), Karen Lilica (formerly) "The Ram" Aries is a timid female. She has horns at the top of her head much like a ram. She has white and fluffy clothes, like a sheep. Her Magic deals with using wool attacks to reassure her opponents in combat.
	Scorpio	Summoner: Lucy Heartfilia, Angel (former) "The Scorpion" Scorpio is a rough man with a large gun for a tail. Scorpio uses a sand based Magic, which he blasts a great amount of sand from his tail.
	Gemini	Summoner: Lucy Heartfilia, Angel (former) "The Twins" Two little spirit twins named "Gemi" and "Mini" that can transform into anyone perfectly and replicate both their thoughts and Magic.
	Capricorn	Summoner: Lucy Heartfilia, Layla Heartfilia (former), Zoldeo (former) "The Goat" is a humanoid goat who was taken over by his former master through the use of Lost Magic. When he is freed, he joins Lucy as one of her spirits.

  
Silver Keys

Silver Keys
Key	Name	Description	Picture
	Crux	Summoner: Lucy Heartfilia "The Southern Cross" Crux is a human like cross, with a mustache and cross shaped nose. Crux has a lot of information about all Celestial Spirits and their masters, either in the present or in the past.
	Horologium	Summoner: Lucy Heartfilia "The Pendulum Clock" Horologium is a large grandfather clock. Horologium has combat and non-combat uses.
	Lyra	Summoner: Lucy Heartfilia "The Lyre" Lyra wears a bonnet and dress. She also has wings on her back, she has the ability to sing beautiful songs, she mostly sings about emotions, but she does take requests.
	Nikora	Summoner: Lucy Heartfilia "The Canis Minor" Nikora (or Plue, which Lucy named) is a cute, yet small creature. Nikora takes up hardly any Magic power when summoned, stated by Lucy.
	Caelum	Summoner: Angel (former) "The Chisel", it appears as more of an item than a being which takes three different forms to attack.
Unknown	Pyxis	Summoner: Lucy Heartfilia "The Compass", Pyxis looks like a penguin with a big round face. It has a compass on top of its head.

Trivia

• Nakajima from Rave Master made a brief cameo in episode 18, when Lucy talks about the Celestial Spirit Sagittarius and Natsu imagines a octopus with a Nakajima flower head.
• Originally, summoning Celestial Spirits were supposed to be by cards. However this idea was eventually scrapped when the author thought that it was too similar to another manga work.
• During her time in the Tower of Heaven, Lucy managed to summon both Cancer and Aquarius during the same day, which from their contract, Cancer can only be summoned on Tuesday, Thursday, Saturday, and Sunday, while Aquarius can only be summoned on Wednesday. This question was later answered in the Q&A of Volume 16 that the contract is actually constantly changing, and the stronger and trustworthy the bond between the Mage and the Celestial Spirit, the summoner can increase the amount of days that a particular spirit can be summoned.
• The Golden keys appear to be more stylized in the anime, appearing with handles and teeth to the theme of the summoned spirit, while in the manga they appear as ordinary keys with the Constellation's symbol engraved on the top. Although in the manga, they are starting to be depicted in their stylized forms, as seen when Lucy summoned Taurus and Scorpio simultaneously. 

(c)http://fairytail.wikia.com/wiki/Celestial_Spirits

Dark Guilds

Dark Guilds are guilds that are no longer (or never were) recognized by the Magic Council; therefore they are treated as criminal organizations. Dark Guilds are typically dismissive of legal guilds, seeing that they abide the rules imposed by the Magic Council. They think that the Council limits the potential of guilds because of their restrictions.
  
Organization
There is very little known about the hierarchy of Dark Guilds. All Dark Guilds, like legal guilds, are run by their respective Guild Master. Dark Guilds have S-Class level Mages, but it is unknown if the Mages in question are called "S-Class Mages". In the Grimoire Heart Guild they have a Deputy Commander, or second in charge, of their guild. 

Balam Alliance
The Balam Alliance (バラム同盟 Baramu Dōmei) is an alliance between three of the four most powerful Dark Guilds in the world. Despite being referred to as an alliance, the three guilds do not interact with each other at all, and their alliance is nothing more than a non-aggression pact. They control the underworld, and all Dark Guilds, with the exception of Raven Tail, are under the control of one of the three. At the moment, the alliance consists of only two guilds following the disbandment and dissolution of Oración Seis. 

Guild Name	Description	Guild Master	Status	Symbol
Oración Seis	An extremely powerful Dark Guild. They were one of the three major Dark Guilds of the Balam Alliance that dominates the world of Dark Guilds. They comprised the smallest guild ever shown, with only six true members. They made an attempt to seize Nirvana. They were defeated by the Light Team, and are now dissolved.	Brain	Dissolved
Grimoire Heart	One of the three major Dark Guilds and a member of the Balam Alliance. It is the strongest Dark Guild in existence. Its members reside in a very large airship that flies over the land. They were initially hunting down the keys to the seal which binds the legendary Dark Mage Zeref, but seem to have attained all of them now. They have successfully found out that Zeref is on Tenrou Island and arrived there to find and unseal him. Because Fairy Tail members were also on the island for their annual S-Class Wizard Promotion Trial, a war occurred between the two Guilds, Fairy Tail won.	Currently Vacant	Active
Tartaros	Nothing is known about the this guild, except for the fact that it is the third member of the Balam Alliance.	Unknown	Active	Unknow

  
Other Dark Guilds

Guild Name	Description	Guild Master	Status	Symbol
Eisenwald	A Dark Guild that operated under the Oración Seis. They were supposedly disbanded by the Magic Council, but continued taking assassination missions and other guild activities. Filled with spite for the Magic Council, they schemed a way to get revenge. Upon hearing of the infamous Magical flute, Lullaby, they planned to kill all of the Guild masters as the attended the regular meeting with Lullaby's mass murder Magic. Their plan was spoiled by Team Natsu however.	Unknown	Dissolved	Unknown
Naked Mummy	A small Dark Guild operating under Oración Seis that specializes in Guns Magic. All their members look like monkeys.	Unknown	Active
Death's Head Caucus	Another Dark Guild is known for being unmatched in its number of successful assassinations. The only known members, the team Trinity Raven, participated in Jellal Fernandes's Heaven's Game against the Fairy Tail members. The guild seems to be extremely powerful, as all three members shown were able to match or overpower S-Class level Mages such as Natsu Dragneel, Gray Fullbuster, and Juvia Lockser. And their leader, Ikaruga, held the upper hand against Erza Scarlet for the majority of their battle.	Unknown	Active
Dark Unicorn	Another Dark Guild under Oración Seis' control. Nothing is known about them except that they all wear similar uniforms. These uniforms look a bit like school uniforms and most of them are worn in a style that is reminiscent of a high school delinquent. They also style their hair in a way that looks like the horn of a unicorn. They seem to carry around weapons instead of using Magic.	Unknown	Unknown
Harpuia	A guild that was personally lead by Racer, one of the Oración Seis. Its members were all easily defeated by Natsu while he was hunting for Jellal. They all resembled pit crew workers since they carried tools and wore helmets.	Racer	Unknown
Ghoul Spirit	A guild aligned to the Oración Seis that was quickly destroyed by the Thunder God Tribe. No leader was made apparent. Their guild was located northwest of Shirotsume Town.	Unknown	Unknown	Unknown
Red Hood	A guild aligned to the Oración Seis that encountered Lyon, Sherry and Jura. They all wear red hoods, as the name suggests. Many members of that guild were seen wielding staffs. As seen most of the Mages of the guild are exceptionally good drawers and use Pict Magic like Reedus Jonah, but the difference is that they use it on paper and not in their bodies. Also they've been show to use an ability called Unison Pict which combines all of their drawings and summons together using everyone's Magic. Also another reason of using this Magic might be that some of the drawings are really strong and the users can't call them out single-handedly such as in the case of the wyvern they summoned. Even Jura Neekis admired their drawing skills and capabilities but nonetheless defeated the wyvern as well as all of them with minimal effort.	Unknown	Unknown	Unknown
Fairy Tail (Edolas)	Fairy Tail (Edolas) is an alternate universe counterpart of the Fairy Tail Guild from Earth Land. The Fairy Tail Guild was the only guild in the entire Edolas realm and was treated like a Dark Guild since Mage guilds are banned. It was therefore targeted by the Royal Army for destruction. Now that Mystogan sucked all the Magic of Edolas to Earth Land, it doesn't have any Magic anymore.	Unknown	Active

(c)http://fairytail.wikia.com/wiki/Dark_Guilds

Guilds

Guilds (ギルド Girudo) are organizations of Mages.

Purpose 

• Provide a place for Mages to take Jobs and earn Jewels.
• Provide a place for Mages to hone their skills.
• Defense against Dark Guilds and all other criminals.

Government
The main power in the Kingdom of Fiore is the King and his Government. Under his order is the Magic Council, which enforces rules over the guilds to uphold lawful employment of Mages, and other forms of employment while making sure they do not cause trouble.
  
Organization
All Legal Guilds are connected. Their Guild Masters form a Local Guild Master League, which meet at regular meetings.
The hierarchy within Guilds in order of the most powerful to the least is usually, Guild Master, Guild Ace, S-Class Mages, and Mages.
  
Guild Master
A Guild Master is a Mage who is the head of the guild that he or she is affiliated with. Typically, Guild Masters are very powerful, often being the strongest Mage in their guilds. Occasionally they are even members of the Ten Wizard Saints, as with the case of Makarov. As the heads of their own respective guilds, they virtually have complete authority over their subordinates, and can thus dictate their actions. 

Guild Ace
A Guild Ace is simply the most powerful Mage in a Guild not including the Master. While many guilds have Guild Aces, the position does not hold true for every guild.




S-Class Mages
An S-Class Mage is a powerful Mage that is recognized by the Guild Master and is able to undertake S-Class Jobs. The jobs they take are so dangerous that even the simplest mistake can cost them their life. However the pay for S-Class Jobs is good. The overall strength of S-Class Mages differ from guild to guild.

Mages
Mages are simply users of Magic that are able to undertake Jobs.
  
Legal Magic Guilds

Guild Name	Description	Guild Master	Status	Symbol
Fairy Tail	The Fairy Tail Guild was once the most powerful guild in Fiore. This guild is greatly disliked by the Magic Council because of the members' destructive natures.	Makarov Dreyar	Active
Sabertooth	Currently the most powerful guild in Fiore.	Unknown	Active
Twilight Ogre	Representative Guild in Magnolia Town.	Banaboster	Active
Lamia Scale	One of the top four guilds in Fiore, not much is known about this guild except that they allied with Fairy Tail, Blue Pegasus, and Cait Shelter to defeat the Oración Seis, one of the three dark guilds of the Balam Alliance.	Ooba Babasaama	Active
Blue Pegasus	One of the top four guilds in Fiore, the guild is mostly a guild for women and effeminate males. It is known for having beautiful members. Blue Pegasus allied with Fairy Tail, Lamia Scale, and Cait Shelter to defeat the Oración Seis, one of the three dark guilds of the Balam Alliance.	Bob	Active
Quatro Cerberus	A guild lead by Goldmine	Goldmine	Active
Mermaid Heel	All-female Guild.	Unknown	Active
Raven Tail	Is a powerful Guild that was founded by Makarov's son Iwan.	Iwan Dreyar	Active
Titan Nose	Nothing is known about this guild except that Bora is a former member.	Unknown	Active	Unknown
Phantom Lord	Once, Phantom Lord was the most powerful Magic guild in Fiore, but over time, Fairy Tail started gaining recognition until both guilds became the signature guilds of Fiore. The guild master, Jose Porla, one of the Ten Wizard Saints, then instigated a guild war with Fairy Tail out of jealousy. After Phantom Lord was defeated, the Magic Council dissolved the guild and stripped Jose of his positions.	Jose Porla	Dissolved
Cait Shelter	This guild sent delegates to participate in the alliance against the Dark Guild, Oración Seis. After all the members of the Oración Seis were defeated and Nirvana was destroyed, the guild master Roubaul revealed that the guild was fake and that its members were all spirits of the Nirvit and thus were only part of an illusion created specifically for Wendy and Carla.	Roubaul	Never Existed

  
Independent Guilds
Guild, which weren't registered by a Magic Council, but their actions are not directed against the World of Magic.

Guild Name	Description	Guild Master	Status	Symbol
Crime Sorcière	The guild's main objective is to eradicate the evil brought about by Dark Guilds and Zeref.	Unknown	Active

  
Other Guilds
There are many other guilds besides Magic guilds. Happy once implies that there are workmen guilds aside from merchant and mercenary guilds, too.

Guild Name	Description	Guild Master	Status	Symbol
Southern Wolves	A mercenary guild, the Southern Wolves mainly use martial arts and counter Magic spells to defeat Mages. Their Guild leader is a person called Mama she was mentioned but never seen.	Mama	Active
Love and Lucky	A merchants guild, not much is known about the guild except that Lucy Heartfilia's parents once worked at the guild and they named Lucy after they saw that the "k" in "Lucky" had fallen down from the sign.	Unknown	Active	Unknown

 (c)http://fairytail.wikia.com/wiki/Guilds