There is also a Spectral Render (Ghost Dino) that was located where Vasrem is on the hill. We had a full group of 45+ almost take out Vasrem, but the Spectral Render was very high level as we had and entire group of 50's get wiped by it and we only had it down to 75% of its hp's.
Is Vasrem a night spawn only?
Arela SpiritKiller