Bracers used when creating the original divine seals on the Material plane that keep at bay the other realms. Made of pure Arcane construction, it seems to reach out and protect the very matter and people around it, whether they like it or not.  Abjuration flows through the metal on these bracers, and urge the wielder to protect and deny outside forces. What would you do to protect that which you hold most dear?

This artifact is one of the Azure Shards, a set of magical items each the physical manifestations of magic in the world from the arcane azure, the magical atmosphere that encompasses the world. When the Azure was first weaved, these were the tools of its creation, manifested and wielded by the first human, Boccob, the god of arcane magic. These bracers were the focus of keeping the other realms out, and created the foundations for The Horizon, the boundary between the material plane and the realms beyond. 

After the Crimson Tide, where the blood war first came into the material plane in the Remnant Wastes and started the Era of Enduring Strife, the Shards were lost to the winds after Boccob seemed to vanish from the material plane, and taking his magics with him.

While attuned, you gain these benefits:

• Gain 1d4 AC when you roll initiative the first time each day
• Can cast Shield of Faith at will as a bonus action
• The possibilities of abjuration have been opened to you. You now are aware of all abjuration spells whose spell level is up to half your level. You do not add them to your spell list but can, as an action or reaction (Whichever is applicable) may attempt to manifest one of these spells, using a Saving throw you gain proficiency in at 1st level of your starting class.  The DC is equal to 10+ the spell level. 
• You may attempt to stretch the ability to abjure and create a new effect. this is dependent on your DM, describe to them what your would like to attempt and they will decide the appropriate DC and Skill check to be made. This attempt could be to cast shield on more than one target, at the cost of lowered AC bonus, or protecting other from a single incoming arrow. the limits are only in your imagination. 

Notes: Bonus: Armor Class, Have the urge and desire to protect some one or thing outside yourself