Kum'isha the Collector is a level 60 Lost One ghost quest giver located near the Rise of the Defiler in the contested territory of the Blasted Lands. He believes that greed is the one responsible for the evils in the world, and that all races smell of it.
He starts the following quests:
[55] Everything Counts In Large Amounts
[55] One Draenei's Junk... (Repeatable)
[55] To Serve Kum'isha
[55] Kum'isha's Endeavors (Repeatable)
See List of Blasted Lands NPCs and List of draenei in Azeroth.