Read from the World of Warcraft client build files.
How Galactic Gladiator's Silk Slippers Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Galactic Gladiator's Silk Slippers suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Galactic Gladiator's Silk Slippers is part of the transmog set Galactic Gladiator's Silk Armor (Warlock 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 Galactic Gladiator's Silk Slippers Fits
Other Items Named Galactic Gladiator's Silk Slippers
2 other items in the current build are also called Galactic Gladiator's Silk Slippers. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Galactic Gladiator's Silk Slippers
Blizzard numbers items as they are created, so the named items next to ID 255397 (255392 to 255402) were usually added in the same batch as Galactic Gladiator's Silk Slippers: the same quest line, zone, vendor or reward set.