Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Waterborne Shoulderguards Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Waterborne Shoulderguards suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Waterborne Shoulderguards is part of the transmog set Regalia of the Firebird (Shaman only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Waterborne Shoulderguards Fits
Other Items Named Waterborne Shoulderguards
4 other items in the current build are also called Waterborne Shoulderguards. 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 90519 (90514 to 90524) were usually added in the same batch as Waterborne Shoulderguards: the same quest line, zone, vendor or reward set.