Read from the World of Warcraft client build files.
How Forged Gladiator's Leather Helm Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Forged Gladiator's Leather Helm suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Transmog Sets
Forged Gladiator's Leather Helm is part of the transmog set Forged Gladiator's Leather Armor (Monk 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 Forged Gladiator's Leather Helm Fits
Other Items Named Forged Gladiator's Leather Helm
3 other items in the current build are also called Forged Gladiator's Leather Helm. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Forged Gladiator's Leather Helm
Blizzard numbers items as they are created, so the named items next to ID 218561 (218556 to 218566) were usually added in the same batch as Forged Gladiator's Leather Helm: the same quest line, zone, vendor or reward set.