An Uncommon Cloth Head, item level 50, requires level 40, binds when picked up. Drops from Talixae Flamewreath in Court of Stars and 1 other encounter.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Netherwhisper Hood Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Netherwhisper Hood suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Netherwhisper Hood is part of the transmog set Vestments of the Manasinged (Priest, Mage and Warlock only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 134392 (134387 to 134397) were usually added in the same batch as Netherwhisper Hood: the same quest line, zone, vendor or reward set.