Read from the World of Warcraft client build files.
How Demonic Gladiator's Leather Helm Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Demonic 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
Demonic Gladiator's Leather Helm is part of the transmog set Fierce Gladiator's Leather Armor (Rogue only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Demonic Gladiator's Leather Helm Fits
Other Items Named Demonic Gladiator's Leather Helm
3 other items in the current build are also called Demonic 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 Demonic Gladiator's Leather Helm
Blizzard numbers items as they are created, so the named items next to ID 149065 (149060 to 149070) were usually added in the same batch as Demonic Gladiator's Leather Helm: the same quest line, zone, vendor or reward set.