Read from the World of Warcraft client build files.
How Astral Gladiator's Chestguard Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Astral Gladiator's Chestguard suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Astral Gladiator's Chestguard is part of the transmog set Astral 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 Astral Gladiator's Chestguard Fits
Other Items Named Astral Gladiator's Chestguard
2 other items in the current build are also called Astral Gladiator's Chestguard. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Astral Gladiator's Chestguard
Blizzard numbers items as they are created, so the named items next to ID 230613 (230608 to 230618) were usually added in the same batch as Astral Gladiator's Chestguard: the same quest line, zone, vendor or reward set.