Read from the World of Warcraft client build files.
How Obsidian Gladiator's Chain Shoulderguard Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Obsidian Gladiator's Chain Shoulderguard suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Obsidian Gladiator's Chain Shoulderguard is part of the transmog set Obsidian Gladiator's Chain Armor (Hunter only), which the Appearances collection lists in 3 versions. The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Obsidian Gladiator's Chain Shoulderguard Fits
Other Items Named Obsidian Gladiator's Chain Shoulderguard
2 other items in the current build are also called Obsidian Gladiator's Chain Shoulderguard. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Obsidian Gladiator's Chain Shoulderguard
Blizzard numbers items as they are created, so the named items next to ID 205596 (205591 to 205601) were usually added in the same batch as Obsidian Gladiator's Chain Shoulderguard: the same quest line, zone, vendor or reward set.