Yarzill the Merc at Dragonmaw Base Camp in Shadowmoon Valley wants you to use Yarzill's Mutton in conjunction with Fel Glands to poison 12 Dragonmaw Peon Camps.
You will need:
To use , players are required to collect which drop from all wildlife in Shadowmoon Valley, excluding the creatures on the Netherwing Ledge. In patch 3.0.8, the drop rate for has been increased to 100%.
This quest can be completed in a group as long as all players are in range of the camp being poisoned when the mutton is dropped. Only 12 or so glands need to be looted group-wide, so this will lessen the pain of the quest. It is advised that someone in the group has a spare gland or two in case one of the camps inevitably bugs.
It should be noted that though the poisoned mutton will attract the entire "pull" of peons, only one will count towards the quest.
The Dragonmaw have peons stationed at nearly every crystal formation up here. While the outright slaying of them would draw far too much unwanted attention to you, there is a way that we can thin their numbers and remain below the suspicious eyes of Mor'ghor.
Venture into the wilds of Shadowmoon Valley and slay the tainted wildlife. Take from them their corrupt fel glands. Use those fel glands with this mutton that I'll give you near the peons. They'll take one bite and fall deathly ill!
It is dirty work, <name>.
<Yarzill speaks in a low whisper.>
Excellent work, <name>. Lay low for now. Come back to me tomorrow and we can do it again.