Read from the World of Warcraft client build files.
How Demonic Gladiator's Scaled Shoulders Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Demonic Gladiator's Scaled Shoulders suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Demonic Gladiator's Scaled Shoulders is part of the transmog set Fierce Gladiator's Scaled Armor (Paladin only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Demonic Gladiator's Scaled Shoulders Fits
Other Items Named Demonic Gladiator's Scaled Shoulders
3 other items in the current build are also called Demonic Gladiator's Scaled Shoulders. 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 Scaled Shoulders
Blizzard numbers items as they are created, so the named items next to ID 149031 (149026 to 149036) were usually added in the same batch as Demonic Gladiator's Scaled Shoulders: the same quest line, zone, vendor or reward set.