The Assembly

The guild of mages, also known as The Assembly, is a group of magic users, who strive to uncover the secrets of the weave, they gather all magicaly knowledge they can for storage in their libraries, and perform constant experiments to discover new lore.

The guild has 5 ranks for regular members, the 6th and 7th rank are reserved for the leaders and members of astounding skill.

Joining the guild gives you access to their library, shop and resources, but they also require any future merged spells be shared with them, and to allow any magical artefacts you discover be studied briefly before being returned to you.

One’s rank is denoted by the colour of robe they are given, though members are also given a patch silver stars on equal to their rank, and the background of which matches their given robe colour.

The Archmages run the guild and settle all disputes amongst the Council of Grand Masters. The Grand Masters run the day to day and pass instructions to the Masters whose job it is to teach and test those of lower rank.
The 3 Archmages are
Ashru Meleth – A Female Gregling is the White Archmage.
Zeelea Klik – A female Aven is the Grey Archmage.
Orru Frailface – A Male Goblin is the Black Archmage.

Rank 1 – Apprentice – Red Robes

This rank is achieved by successfully merging a spell, and presenting it to the Assembly.
The perks of gaining this rank is you get access to their library of up to 3rd level spells.

Rank 2 – Initiate – Orange Robes

To attain this rank one must have mastered 3rd level spells. Then present themselves for testing.
Upon gaining this rank you have access to the 4th level spells in their library.

Rank 3 – Disciple – Yellow Robes

To attain this rank, one must have discovered a very rare magical item, Then present themselves for testing.
Upon gaining this rank you have access to the 5th and 6th level spells in their library.

Rank 4 – Adept – Green Robes

To attain this rank, one must have mastered 6th level spells, created 5 or more of their own spells, each with major changes from the original, and pass their exams. Upon attaining this rank you gain access to all spells in the guild library, as well as some of the more restricted sections of the guild.

Rank 5 – Master – Blue Robes

This rank is achieved by discovering and learning a 10th level spell, and by passing the master trial.

Rank 6 – Grand Master – Purple Robes

This rank is achieved by crafting your own 10+ level spell with a spell seed, constructing a Mythalar, and winning a wizard duel against a grand master,

Rank 7 – Archmage – White/Grey/Black Robes

The Archmages are the 3 leaders of the guild, the colour of their robes matches their alignment. Though all are Lawful. They leave much of the administration to the Council of Grandmasters.

Image – https://www.quora.com/Why-was-the-magic-council-in-Fairy-Tail-so-useless