The game's collection data lists Wildfire Worldwalkers as sold by a vendor NPC in Timeless Isle. The vendor stands at 42.7, 55.7 on the Timeless Isle map.
Vendor NPC, zone and position come from the client's collection source tables (CollectableSourceInfo and CollectableSourceVendorSparse); coordinates are the in-game map readout.
Build history
First seen in build 5.5.4.69585 (Mists of Pandaria).
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Wildfire Worldwalkers Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Wildfire Worldwalkers suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Wildfire Worldwalkers is part of the transmog set Jade Guardian's Regalia (Hunter, Shaman and Evoker only). The other 16 pieces:
2 other items in the current build are also called Wildfire Worldwalkers. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 85980 (85975 to 85985) were usually added in the same batch as Wildfire Worldwalkers: the same quest line, zone, vendor or reward set.