Read from the World of Warcraft client build files.
How Doomblade Tunic Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Doomblade 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
Doomblade Tunic is part of the transmog set Doomblade Battlegear (Rogue only), which the Appearances collection lists in 4 versions. The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Doomblade Tunic Fits
Other Items Named Doomblade Tunic
2 other items in the current build are also called Doomblade 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 247019 (247014 to 247024) were usually added in the same batch as Doomblade Tunic: the same quest line, zone, vendor or reward set.