Aside from being underlevel or undergeared to take this one on, what's so hard about running this one? I'll be honest, I have not multiboxed it yet. I've only run it about 5 times with my main Pally tanking it with the LFD tool. So far, I've only run it on Heroic and cleared it everytime without any wipes. From what I've seen and guessing, it looks like one of the easiests to multibox out of all of them if you've got a good healer that can pop off strong group/aoe heals. Even the Laser event hasn't proven much of a problem when I tank it. I just draw in each mob at the doorway when they appear and keep them on me at all times. Even managed to get the achievement for it for not letting Brahn get hit. 'GTFO' addon also helps for warning you to move out of a damaging AoE you're not aware you're standing in. Gives off an annoying buzzer warning sound telling you to move your ass. Just keep your group together with this addon and it shouldn't be much of a problem dealing with the laser.