In Wrath of the Lich King it is item level 232, requires level 80 and is named Khadgar's Leggings. In MoP Classic it is item level 245, 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 Khadgar's Leggings of Triumph Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Khadgar's Leggings of Triumph suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Similar Items
The 10 items nearest to Khadgar's Leggings of Triumph (item level 35) in item level among Armor > Cloth, Legs slot, from item level 32 to 39.
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Khadgar's Leggings of Triumph Fits
Other Items Named Khadgar's Leggings of Triumph
1 other item in the current build is also called Khadgar's Leggings of Triumph. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Khadgar's Leggings of Triumph
Blizzard numbers items as they are created, so the named items next to ID 47755 (47750 to 47760) were usually added in the same batch as Khadgar's Leggings of Triumph: the same quest line, zone, vendor or reward set.