First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
Related
Greathelm of the Warchief Game Data
Appearance
In the Appearances collection, Greathelm of the Warchief is listed as Boss Drop. Appearance IDs: 20994, 20913, 21047. 27 other items wear the same appearance; 11 of them are listed here.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Greathelm of the Warchief Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Greathelm of the Warchief suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Greathelm of the Warchief is part of the transmog set Battleplate of the Prehistoric Marauder (Warrior only), which the Appearances collection lists in 3 versions. The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Greathelm of the Warchief Fits
Other Items Named Greathelm of the Warchief
6 other items in the current build are also called Greathelm of the Warchief. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 112928 (112923 to 112933) were usually added in the same batch as Greathelm of the Warchief: the same quest line, zone, vendor or reward set.