Read from the World of Warcraft client build files.
How Primal Gladiator's Mooncloth Robe Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear.
Transmog Sets
Primal Gladiator's Mooncloth Robe is part of the transmog set Primal Gladiator's Satin Armor (Priest only), which the Appearances collection lists in 2 versions. The other 13 pieces:
Items Numbered Next to Primal Gladiator's Mooncloth Robe
Blizzard numbers items as they are created, so the named items next to ID 115914 (115909 to 115919) were usually added in the same batch as Primal Gladiator's Mooncloth Robe: the same quest line, zone, vendor or reward set.