This item is acquired in-game. See its sources below.
An Uncommon Cloth Shoulder, item level 41, requires level 35, binds when picked up.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
In the Appearances collection, Firefly Mantle is listed as World Drop. Appearance ID: 21971. 3 other items wear the same appearance:
Read from the World of Warcraft client build files.
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Firefly Mantle suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Firefly Mantle uses icon file 973931, which 15 other items also use. The 4 closest by item ID:
Steamburst Mantle ID 112610 · Armor - Cloth · item level 40Auchenai Keeper Mantle ID 112531 · Armor - Cloth · item level 42Windburnt Pauldrons ID 112086 · Armor - Cloth · item level 40Karabor Sage Mantle ID 107317 · Armor - Cloth · item level 40Blizzard numbers items as they are created, so the named items next to ID 114271 (114266 to 114276) were usually added in the same batch as Firefly Mantle: the same quest line, zone, vendor or reward set.
Ruby Plate Greathelm ID 114266 · Armor - Plate · item level 42
Firefly Trousers ID 114267 · Armor - Cloth · item level 40
Bloodthorn Legguards ID 114268 · Armor - Leather · item level 40
Leafscale Legguards ID 114269 · Armor - Mail · item level 40
Ruby Plate Legplates ID 114270 · Armor - Plate · item level 40
Bloodthorn Spaulders ID 114272 · Armor - Leather · item level 41
Leafscale Spaulders ID 114273 · Armor - Mail · item level 41
Ruby Plate Shoulderguard ID 114274 · Armor - Plate · item level 41
Firefly Cord ID 114275 · Armor - Cloth · item level 44
Bloodthorn Belt ID 114276 · Armor - Leather · item level 44The raw ItemSparse values for item 114271 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
TheWoWDB