Read from the World of Warcraft client build files.
How Forged Gladiator's Chestplate Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Forged Gladiator's Chestplate suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Forged Gladiator's Chestplate is part of the transmog set Forged Gladiator's Plate Armor (Warrior 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 Chestplate Fits
Other Items Named Forged Gladiator's Chestplate
2 other items in the current build are also called Forged Gladiator's Chestplate. 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 Chestplate
Blizzard numbers items as they are created, so the named items next to ID 218689 (218684 to 218694) were usually added in the same batch as Forged Gladiator's Chestplate: the same quest line, zone, vendor or reward set.