I ran this with a 2 guild members and we could't fill the group, so had a dps from the finder join us. All was okay even though they guy was only 20 cp and we got to the last boss. What I hadn't noticed (as I haven't done this mode before) is that someone put it into hardmode.. we couldn't kill it. I understood the mechanics but the dps was too low.
What I would like to see is a vote system come up when someone activates the scroll maybe? It was an evening wasted as we kept trying to kill this boss.. I only want the monster item.