In Wrath of the Lich King it is item level 251 and requires level 80. In MoP Classic it is item level 251, requires level 80 and sells to vendors for 1c.
In the Appearances collection, Relentless Gladiator's Scaled Shoulders is listed as Vendor. Appearance ID: 10540. 2 other items wear the same appearance:
Read from the World of Warcraft client build files.
How Relentless Gladiator's Scaled Shoulders Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Relentless Gladiator's Scaled Shoulders suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Relentless Gladiator's Scaled Shoulders is part of the transmog set Relentless Gladiator's Scaled Armor (Paladin only). The other 14 pieces:
Items Numbered Next to Relentless Gladiator's Scaled Shoulders
Blizzard numbers items as they are created, so the named items next to ID 40872 (40867 to 40880) were usually added in the same batch as Relentless Gladiator's Scaled Shoulders: the same quest line, zone, vendor or reward set.