Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Erupting Volcanic Headpiece Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Erupting Volcanic Headpiece suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Erupting Volcanic Headpiece is part of the transmog set Volcanic Regalia (Shaman only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Erupting Volcanic Headpiece Fits
Other Items Named Erupting Volcanic Headpiece
2 other items in the current build are also called Erupting Volcanic Headpiece. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Erupting Volcanic Headpiece
Blizzard numbers items as they are created, so the named items next to ID 171815 (171810 to 171820) were usually added in the same batch as Erupting Volcanic Headpiece: the same quest line, zone, vendor or reward set.