Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Flaming Core Chestguard Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Flaming Core Chestguard suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Flaming Core Chestguard is part of the transmog set Flamewaker's Battlegear (Hunter only). The other 13 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Flaming Core Chestguard Fits
Other Items Named Flaming Core Chestguard
2 other items in the current build are also called Flaming Core Chestguard. 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 71417 (71412 to 71422) were usually added in the same batch as Flaming Core Chestguard: the same quest line, zone, vendor or reward set.