Read from the World of Warcraft client build files.
How Prized Warmonger's Cinch Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Prized Warmonger's Cinch suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Prized Warmonger's Cinch is part of the transmog set Blastborne Loadout (Hunter, Shaman and Evoker only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 230136 (230131 to 230141) were usually added in the same batch as Prized Warmonger's Cinch: the same quest line, zone, vendor or reward set.