Read from the World of Warcraft client build files.
How Fierce Combatant's Scaled Helm Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Fierce Combatant's Scaled Helm suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Fierce Combatant's Scaled Helm is part of the transmog set Fierce Combatant's Scaled Armor (Paladin only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Fierce Combatant's Scaled Helm Fits
Other Items Named Fierce Combatant's Scaled Helm
1 other item in the current build is also called Fierce Combatant's Scaled Helm. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Fierce Combatant's Scaled Helm
Blizzard numbers items as they are created, so the named items next to ID 149638 (149633 to 149643) were usually added in the same batch as Fierce Combatant's Scaled Helm: the same quest line, zone, vendor or reward set.