21 transmog appearances and 1 mount, pet or toy drop in Molten Core.
Aged Core Leather GlovesLeather Hands
Arcanist RobesCloth Chest
Azuresong MagebladeOne-Hand
Blastershot LauncherRanged
Breastplate of MightPlate Chest
Cenarion VestmentsLeather Chest
Deep Earth SpauldersMail Shoulder
Earthfury VestmentsMail Chest
Felheart RobesCloth Chest
Fire Runed GrimoireHeld In Off-hand
Flameguard GauntletsPlate Hands
Flamewaker LegplatesPlate Legs
Giantstalker's BreastplateMail Chest
Lawbringer ChestguardPlate Chest
Magma Tempered BootsPlate Feet
Mana Igniting CordCloth Waist
Nightslayer ChestpieceLeather Chest
Obsidian Edged BladeTwo-HandRobes of ProphecyCloth Chest
Sabatons of the FlamewalkerMail Feet
Staff of DominanceTwo-HandSign in with Battle.net to see which of these appearances and collectibles you already have, and which of your characters can still loot Golemagg the Incinerator this reset.