The game's collection data lists Lightning Rod Legplates as sold by 2 vendor NPCs in Orgrimmar and Ironforge. The first vendor stands at 57.1, 89.9 on the Orgrimmar 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).
In the Appearances collection, Lightning Rod Legplates is listed as World Drop. Appearance ID: 17655. 14 other items wear the same appearance; 9 of them are listed here.
Read from the World of Warcraft client build files.
How Lightning Rod Legplates Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Lightning Rod Legplates suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Lightning Rod Legplates is part of the transmog set Swarmbreaker's Battleplate (Warrior, Paladin and Death Knight only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 93119 (93114 to 93124) were usually added in the same batch as Lightning Rod Legplates: the same quest line, zone, vendor or reward set.