Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Heroes' Scourgeborne Handguards Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Heroes' Scourgeborne Handguards suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Heroes' Scourgeborne Handguards is part of the transmog set Heroes' Scourgeborne Plate (Death Knight only). The other 12 pieces:
Items Numbered Next to Heroes' Scourgeborne Handguards
Blizzard numbers items as they are created, so the named items next to ID 39624 (39619 to 39629) were usually added in the same batch as Heroes' Scourgeborne Handguards: the same quest line, zone, vendor or reward set.