If the Transmogrifier does what I think it does my priest will have all his gear transmogified to look like the Blue level 60 pvp set legionnaire's something (Horde set). My staff will be transmogified to look like the the disciplinary staff (The one in the Priest class Icon). I like to wear that PvP set around when I'm not using my stat gear, and carry the staff as well, it just makes my character look like an epic shadow priest (It looks really good on male Trolls).