
Here is what I did this past try:
I ignore the first two Harbringers to keep the spawning groups to a minimum, then killed the harbringer at the top of the stairs and waited for the spawn group. Once that group is gone, I kill either the left or right static group depending on who I aggro. After killing one group, I flag back to the middle and wait for the next spawn group, then kill the static group on the other flank. After the next spawn group, I went to the second harbringer and killed him. I flag my heroes back a little, let the mobs kill the spirit and then pull them back into the room so I can avoid aggroing the group in the middle. After killing this group, I flag my heroes back to the stairs while I run back to Hinon to get a Light. At some point during this the first Sprit died. My heroes have no problem holding off the groups while I run back to spawn. We run over to the other harbringer and kill him, following the same tactic of pulling the group back. Again, I flag them back to the stairs to guard against the spawn groups while I go get another Light. After deafeating that spawn group, I flag my heroes at the bottom of the stairs where the bonus is. I run up, drop the light and kill the harbringer and run down, then did the same to the other bonus. I didn't realize until a little later that you have to kill their whole possy :P. So after killing a spawn group, we run up the stairs and kill the group. Just as I kill the last monster, a spawn group is released. I was able to run down and stop them, but my heroes were unable to catch up in time to heal and dps. I died, and the mob moved down to Hinon. I get resurrected and get down there as fast as I can only to have Hinon die. Spent 45 minutes running back and fourth killing to stupid spawn mobs...only to fail so close to the finish line.
Here is the setup:
I play Warrior with Eviscerate, Sprint, "For Great Justice", and Flail among others
Tahlkora is healer monk with Word of Healing, Healing Seed, Vigorous Spirit, and Words of Comfort.
Ogden is prot monk with Shield of Deflection, Aegis, Healing Seed, Shielding Hands, and Extinguish
Koss is sword war with Hundred Blades, "Shields Up"
Vekk is earth/air ele with Ward against Melee, Elemental Attunement, Earthquake, and others
Zhed is fire ele with Searing Flames, Searing Heat, Inferno, Liquid Flame, Fireball, and Fire Attunement
Those I have setup pretty well. This past run I brought General Morgahn and Xandra, however they have fairly weak builds. Morgahn has Anthem of Guidance with "To the Limit", Anthem of Envy, "Go for the Eyes", "Find their Weakness" and "Never surrender". Xandra has no elites skills, three spirit skills, and two hexes.
Any suggestions on what to do differently? On the monks, I could probably get rid of the condition removal skills for something else because this place has few conditions. Is there something I can do to help mow down the groups faster to give me more time? After killing the three harbringers in the middle, I could probably kill the two in the main hallway to help slow down any rogue groups that get by. Anything else?