The game's collection data lists Flame Pillar Leggings as sold by a vendor NPC in Dalaran.
Vendor
Zone
Map
Waypoint
Other items it sells
NPC #69973
Dalaran
-
-
162
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 Flame Pillar Leggings Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Flame Pillar Leggings suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Flame Pillar Leggings is part of the transmog set Shadowflame Regalia (Warlock only). The other 15 pieces:
1 other item in the current build is also called Flame Pillar Leggings. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Pillars of the Dark PortalID 132357 · Armor - Cloth · item level 50"Corrupted by the demonlord Sargeras, Medivh contacted the orc warlock Gul'dan and together they opened the..."
Items Numbered Next to Flame Pillar Leggings
Blizzard numbers items as they are created, so the named items next to ID 59336 (59331 to 59343) were usually added in the same batch as Flame Pillar Leggings: the same quest line, zone, vendor or reward set.