This item is acquired in-game. See its sources below.
In the Appearances collection, Valhalas Helm is listed as Vendor. Appearance ID: 28676. 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.
Valhalas Helm is part of the transmog set Valhalas Ceremonial Armor (Warrior, Paladin and Death Knight only). The other 8 pieces:
Valhalas Cape
Valhalas Sabatons
Valhalas Handguards
Valhalas Greaves
Valhalas Pauldrons
Valhalas Waistguard
Valhalas Bracelets
Valhalas ChestguardValhalas Helm is part of the transmog set Winged Plate of the Valhalas Champion (Warrior, Paladin and Death Knight only). The other 15 pieces:
Valhalas SabatonsValhalas HandguardsValhalas GreavesValhalas PauldronsValhalas WaistguardValhalas BraceletsValhalas ChestguardArmplates of the Valhalas ChampionSpaulders of the Valhalas ChampionWargreaves of the Valhalas ChampionHelmet of the Valhalas ChampionHandguards of the Valhalas ChampionBreastplate of the Valhalas ChampionWarboots of the Valhalas ChampionWaistguard of the Valhalas ChampionBuilt from the World of Warcraft client build files and recorded Auction House snapshots.
Valhalas Helm 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