Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Shadowblade Legplates Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Shadowblade Legplates suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Transmog Sets
Shadowblade Legplates is part of the transmog set Shadowblade's Battlegear (Rogue only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Shadowblade Legplates Fits
Other Items Named Shadowblade Legplates
1 other item in the current build is also called Shadowblade Legplates. 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 50090 (50082 to 50097) were usually added in the same batch as Shadowblade Legplates: the same quest line, zone, vendor or reward set.