Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Acid-Scarred Spaulders Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Acid-Scarred Spaulders suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Acid-Scarred Spaulders is part of the transmog set Swarmbreaker's Battleplate (Warrior, Paladin and Death Knight only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Acid-Scarred Spaulders Fits
Other Items Named Acid-Scarred Spaulders
2 other items in the current build are also called Acid-Scarred Spaulders. 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 143980 (143975 to 143985) were usually added in the same batch as Acid-Scarred Spaulders: the same quest line, zone, vendor or reward set.