In Wrath of the Lich King it is item level 226 and requires level 80. In MoP Classic it is item level 200, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Heroes' Earthshatter Tunic Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Heroes' Earthshatter Tunic suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Heroes' Earthshatter Tunic is part of the transmog set Heroes' Earthshatter Regalia (Shaman only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Heroes' Earthshatter Tunic Fits
Other Items Named Heroes' Earthshatter Tunic
1 other item in the current build is also called Heroes' Earthshatter 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 39588 (39580 to 39593) were usually added in the same batch as Heroes' Earthshatter Tunic: the same quest line, zone, vendor or reward set.