7 transmog appearances in Drak'Tharon Keep.
Handler's Arm StrapLeather Wrist
King Dred's HelmMail Head
Savage Wound WrapCloth WristScabrous-Hide HelmLeather Head
Stable Master's BreechesCloth Legs
Staff of the Great ReptileTwo-HandSign in with Battle.net to see which of these appearances and collectibles you already have, and which of your characters can still loot King Dred this reset.