In The Burning Crusade it is item level 115 and requires level 70. In Wrath of the Lich King it is item level 258 and requires level 80. In MoP Classic it is item level 115 and requires level 70.
In the Appearances collection, Earthblood Chestguard is listed as Boss Drop. Appearance ID: 7341. No other item uses this appearance, so it is unique to Earthblood Chestguard.
Read from the World of Warcraft client build files.
Where Earthblood Chestguard Comes From
Earthblood Chestguard Drops From
The in-game Adventure Guide lists Earthblood Chestguard in the loot of 1 encounter.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Earthblood Chestguard Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Earthblood Chestguard suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Similar Items
The 10 items nearest to Earthblood Chestguard (item level 32) in item level among Armor > Mail, Chest slot, from item level 28 to 35.
Blizzard numbers items as they are created, so the named items next to ID 28735 (28730 to 28743) were usually added in the same batch as Earthblood Chestguard: the same quest line, zone, vendor or reward set.