Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Lightsworn Legplates Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Lightsworn Legplates suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Lightsworn Legplates is part of the transmog set Lightsworn Plate (Paladin only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Lightsworn Legplates Fits
Other Items Named Lightsworn Legplates
1 other item in the current build is also called Lightsworn 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 50325 (50317 to 50333) were usually added in the same batch as Lightsworn Legplates: the same quest line, zone, vendor or reward set.