18 transmog appearances and 1 mount, pet or toy drop in Blackwing Descent.
Akmin-Kurai, Dominion's Shield×2Shield
Andoros, Fist of the Dragon KingOne-Hand
Belt of the Blackhand×2Plate Waist
Belt of the Nightmare×2Leather Waist
Crul'korak, the Lightning's ArcOne-Hand
Mantle of Nefarius×2Cloth Shoulder
Pauldrons of the Apocalypse×2Plate Shoulder
Reclaimed Ashkandi, Greatsword of the BrotherhoodTwo-Hand
Shadow of DreadCloth Back
Shadowblaze Robes×2Cloth Chest
Spaulders of the Scarred Lady×2Mail ShoulderSign in with Battle.net to see which of these appearances and collectibles you already have, and which of your characters can still loot Nefarian's End this reset.