43 transmog appearances and 1 mount, pet or toy drop across 6 bosses.
Banshee FingerRanged
Banshee's TouchPlate Hands
Chillhide BracersLeather Wrist
Coldtouch Phantom WrapsCloth Chest
Screeching BowRanged
Shadowy Laced HandwrapsCloth Hands
Windshrieker PauldronsMail Shoulder
Acid-Etched PauldronsPlate Shoulder
Carapace Spine CrossbowRanged
Chitinous Plate LegguardsPlate Legs
Crypt Stalker LeggingsLeather Legs
Darkspinner ClawsMail Hands
Fangdrip RunnersCloth Feet
Husk of Nerub'enkanShield
Thuzadin SashCloth Waist
Bone Slicing HatchetOne-Hand
Darkbind FingersCloth Hands
Flamescarred GirdleLeather Waist
Lavawalker GreavesPlate Feet
Maleki's FootwrapsCloth Feet
Pale Moon CloakCloth Back
Skull of Burning ShadowsHeld In Off-hand
Twilight Void BracersMail Wrist
Crimson Felt HatCloth Head
Death GripsPlate Hands
Magistrate's CuffsLeather Wrist
PeacemakerTwo-Hand
Royal Tribunal CloakCloth Back
Crest of RetributionShield
Slavedriver's CaneTwo-Hand
Soulstealer MantleCloth Shoulder
BonescraperOne-Hand
Cape of the Black BaronCloth BackDracorian GauntletsMail Hands
Gauntlets of DeftnessMail Hands
Helm of the ExecutionerPlate Head
Ritssyn's Wand of Bad MojoRanged
Robes of the ExaltedCloth Chest
Runeblade of Baron RivendareTwo-Hand
Scepter of the UnholyOne-Hand
Skullforge ReaverOne-HandThuzadin MantleCloth Shoulder
Tunic of the Crescent MoonLeather ChestSign in with Battle.net to see which of these appearances and collectibles you already have, and which of your characters can still loot each boss this reset.