Read from the World of Warcraft client build files.
How Plaguebringer's Robe Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Plaguebringer's Robe suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 4 items nearest to Plaguebringer's Robe (item level 60) in item level among Armor > Cloth, Chest slot.
Plaguebringer's Robe is part of the transmog set Plaguebringer's Raiment (Priest, Mage and Warlock only), which the Appearances collection lists in 2 versions. The other 11 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Plaguebringer's Robe Fits
Other Items Named Plaguebringer's Robe
1 other item in the current build is also called Plaguebringer's Robe. 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 165492 (165487 to 165497) were usually added in the same batch as Plaguebringer's Robe: the same quest line, zone, vendor or reward set.