For the Shaman epic this mob is in West Karana and is pinky purple and huge
In East Karana: This mob looks very similar to a wisp. Sounds like one too. But conned med blue to my lvl 30 Ranger, and was able to defeat it with 2 bubs left. Of course, I just went head-to-head with it and didnt kite. Which is good, because it nailed me real good with Spirits of Frost spell. Also can sometimes hit around 52pts too. Found no loot and no money.
In Oceangreen Village: Part of the task "Music For a Weary Soul".