This item is acquired in-game. See its sources below.
An Uncommon Leather Chest, item level 44, binds when picked up.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
In the Appearances collection, Runesworn Tunic is listed as Quest. Appearance ID: 26586. 5 other items wear the same appearance:
Read from the World of Warcraft client build files.
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Runesworn Tunic suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Runesworn Tunic is part of the transmog set Haustvelt Leathers (Rogue, Monk, Druid and Demon Hunter only). The other 16 pieces:
Haustvelt Bindings
Haustvelt Boots
Haustvelt Britches
Haustvelt Gloves
Haustvelt HoodHaustvelt Jerkin
Haustvelt Shoulders
Haustvelt WaistbandDuskbat Exterminator's TreadsRunesworn CrownRunesworn BreechesThorignir Striker ShoulderguardsHumming Stormwing WrapMatriarch-Hide LegguardsEbon Stalker's BootsBoomer's Utility BeltBuilt from the World of Warcraft client build files and recorded Auction House snapshots.
Runesworn Tunic uses icon file 1115104, which 42 other items also use. The 5 closest by item ID:
Electrified Stormwing Vest ID 129321 · Armor - Leather · item level 44Shaladrassil Tunic ID 129993 · Armor - Leather · item level 50Drogstitch Chestguard ID 130284 · Armor - Leather · item level 44Faded Swashbuckler's Jerkin ID 131798 · Armor - Leather · item level 44Nightglaive's Vest ID 132939 · Armor - Leather · item level 44Blizzard numbers items as they are created, so the named items next to ID 129359 (129353 to 129364) were usually added in the same batch as Runesworn Tunic: the same quest line, zone, vendor or reward set.
Tender Hjarta Loop ID 129353 · Armor · item level 44
Cask of Challiane Wine ID 129356 · Quest "This ancient cask bears the stamp of Queen Azshara."
Runespeaker's Vestments ID 129357 · Armor - Cloth · item level 44
Stormborn Hauberk ID 129358 · Armor - Mail · item level 44
Dreadsworn Breastplate ID 129360 · Armor - Plate · item level 44
Blackfeather Handwraps ID 129361 · Armor - Cloth · item level 44
Broot ID 129362 · Miscellaneous "Teaches you how to summon this companion."Blackfeather Gloves ID 129363 · Armor - Leather · item level 44
Blackfeather Grips ID 129364 · Armor - Mail · item level 44The raw ItemSparse values for item 129359 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
TheWoWDB