If you have good enough gear you can pull Mograine + all the adds with a Warlock. Walk in -> send VW -> sac VW before he dies -> instant AoE fear -> kite, all the while tabbing and siphon life on as many possible targets as you can. Then use the waterfall to get some breathing room to get off a SoC or two by jumping off near one side and then running up the other stairs. Cast the SoC on Mograine if possible, as you don't want him to die until most of the adds are down. Park alts on one side and they shouldn't get any aggro even from runners, yet still be in XP range.