Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Ymirjar Lord's Legplates Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Ymirjar Lord's Legplates suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Ymirjar Lord's Legplates is part of the transmog set Ymirjar Lord's Battlegear (Warrior only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Ymirjar Lord's Legplates Fits
Other Items Named Ymirjar Lord's Legplates
2 other items in the current build are also called Ymirjar Lord's 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 50081 (50075 to 50089) were usually added in the same batch as Ymirjar Lord's Legplates: the same quest line, zone, vendor or reward set.