This item is acquired in-game. See its sources below.
Appearance ID: 19942. 14 other items wear the same appearance; 10 of them are listed here.
Read from the World of Warcraft client build files.
Plate is the armor type Death Knight, Paladin and Warrior wear.
Lightning Emperor's Grasp is part of the transmog set Battlegear of the Lightning Emperor (Paladin only). The other 16 pieces:
Bubbling Anima Belt
Hypersensitive Sollerets
Time-Lost Greaves
Nova-Binder BreastplateIonized Yojamban Carapace
Armplates of the Vanquished AbominationRefreshing Abalone GirdleTortos' ShellseizersIce-Scored Treads
Crown of Potentiated BirthIceshatter GauntletsLegplates of Re-EmergenceBonemender Bracers
Spaulders of Primordial GrowthMatter-Swapped LegplatesLei Shen's Grounded CarapaceBuilt from the World of Warcraft client build files and recorded Auction House snapshots.
Lightning Emperor's Grasp is not traded on the Auction House, so it has no Auction House price. It is acquired in-game from the sources listed above. This page collects its first-party game data (identity, effects and where it comes from) from the official World of Warcraft client build.
TheWoWDB