Next on Leftwitch's list is... let's see... hmm. Oh, here it is.
Simple enough, but pretty explicit in his directions. He needs venom from the scorpashi, and hide from some kodo. The fine print says both are from specific creatures: the venom's got to come from any of the scorpashi, and the hide's got to come from an aged kodo, not the dying or ancient ones.
Mages, I tell ya, some of the stuff they want... it's just weird.
Progress
Sorry I couldn't tell you where to find the kodo or the scorpashi. I'm not terribly familiar with the area, and I haven't had time to explore.
Quest completion
Your help here's a boon, <name>. You're cutting my time spent here in Desolace by half at least. I'll be back in Ironforge warming my feet in no time with your help.
When we get this list taken care of, and I'm back home, look me up, I'll buy you an ale for sure.
But until then, let's get the rest of these reagents gathered.
The Scorpashi are the scorpions found everywhere in Desolace. The venom drops less than half the time, so you'll be killing a lot of scorpions to complete this.
The Aged Kodo Hides are dropped with pretty much every aged kodo slain.
The aged kodo travel in herds, mostly along the trails (who do you think made the trails) along the south and west, usually ending up near the Kodo Graveyard.