There are three level 82s to kill, each 270k HP. You do not need to do the pre-quest in Stormwind/Orgrimmar, but will get an extra 3G if you do. You can complete that pre-quest even after completing the summoning daily, so no need to worry. You have to kill Apothecary Hummel[Perfume], Apothecary Baxter[Cologne], and Apothecary Frye[Un-tankable].
- Patch 3.3.0 (2009-12-08): Added.