Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Circuit Design Breastplate Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Circuit Design Breastplate suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Circuit Design Breastplate is part of the transmog set Regalia of the Raging Elements (Shaman only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Circuit Design Breastplate Fits
Other Items Named Circuit Design Breastplate
1 other item in the current build is also called Circuit Design Breastplate. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 65004 (64999 to 65007) were usually added in the same batch as Circuit Design Breastplate: the same quest line, zone, vendor or reward set.
Reins of the Spectral WolfID 64999 · Miscellaneous · item level 10"Teaches you how to summon this mount."