This item is acquired in-game. See its sources below.
In the Appearances collection, Venomous Gladiator's Plate Legguards is listed as Vendor / Achievement. Appearance IDs: 133510, 133492. 1 other item wears the same appearance:
Read from the World of Warcraft client build files.
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Venomous Gladiator's Plate Legguards suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Venomous Gladiator's Plate Legguards is part of the transmog set Venomous Gladiator's Plate Armor (Paladin only), which the Appearances collection lists in 3 versions. The other 16 pieces:
Venomous Gladiator's CloakVenomous Gladiator's DrapeVenomous Gladiator's Shawl
Venomous Gladiator's ChestguardVenomous Gladiator's Chestplate
Venomous Gladiator's Plate WarbootsVenomous Gladiator's Plate Stompers
Venomous Gladiator's Plate GauntletsVenomous Gladiator's Plate Handguards
Venomous Gladiator's Plate HelmVenomous Gladiator's Plate HelmetVenomous Gladiator's Plate Tasses
Venomous Gladiator's Plate ShouldersVenomous Gladiator's Plate Pauldrons
Venomous Gladiator's Plate GirdleVenomous Gladiator's Plate GreatbeltBuilt from the World of Warcraft client build files and recorded Auction House snapshots.
Venomous Gladiator's Plate Legguards 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.
Tracked changes to Venomous Gladiator's Plate Legguards between game data builds, newest first.
TheWoWDB