Read from the World of Warcraft client build files.
How Obsidian Gladiator's Silk Guise Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Obsidian Gladiator's Silk Guise suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 2 items nearest to Obsidian Gladiator's Silk Guise (item level 408) in item level among Armor > Cloth, Head slot, from item level 400 to 447.
Obsidian Gladiator's Silk Guise is part of the transmog set Obsidian 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 Obsidian Gladiator's Silk Guise Fits
Other Items Named Obsidian Gladiator's Silk Guise
2 other items in the current build are also called Obsidian Gladiator's Silk Guise. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Obsidian Gladiator's Silk Guise
Blizzard numbers items as they are created, so the named items next to ID 205512 (205507 to 205517) were usually added in the same batch as Obsidian Gladiator's Silk Guise: the same quest line, zone, vendor or reward set.