Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Immolation Helmet Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Immolation Helmet suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Immolation Helmet is part of the transmog set Battleplate of Immolation (Paladin only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Immolation Helmet Fits
Other Items Named Immolation Helmet
2 other items in the current build are also called Immolation Helmet. 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 171780 (171775 to 171785) were usually added in the same batch as Immolation Helmet: the same quest line, zone, vendor or reward set.