4 transmog appearances and 1 mount, pet or toy drop in Temple of Ahn'Qiraj.
Gauntlets of KalimdorMail HandsGauntlets of the Righteous ChampionPlate Hands
Sharpened Silithid FemurOne-Hand
Slime-Coated LeggingsMail LegsSign in with Battle.net to see which of these appearances and collectibles you already have, and which of your characters can still loot Viscidus this reset.