Read from the World of Warcraft client build files.
How Fierce Gladiator's Plate Helm Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Fierce Gladiator's Plate Helm suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Fierce Gladiator's Plate Helm is part of the transmog set Fierce Gladiator's Plate Armor (Warrior only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Fierce Gladiator's Plate Helm Fits
Other Items Named Fierce Gladiator's Plate Helm
3 other items in the current build are also called Fierce Gladiator's Plate Helm. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Fierce Gladiator's Plate Helm
Blizzard numbers items as they are created, so the named items next to ID 148392 (148387 to 148397) were usually added in the same batch as Fierce Gladiator's Plate Helm: the same quest line, zone, vendor or reward set.