Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Thunderheart Tunic Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Thunderheart Tunic suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Transmog Sets
Thunderheart Tunic is part of the transmog set Thunderheart Raiment (Druid only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Thunderheart Tunic Fits
Other Items Named Thunderheart Tunic
1 other item in the current build is also called Thunderheart Tunic. 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 150574 (150569 to 150581) were usually added in the same batch as Thunderheart Tunic: the same quest line, zone, vendor or reward set.