Teaupriran, the pt that did this for me was consisted all of lvl 75's. The jobs were: DRK, WHM, PLD, and BLM.
As for the prelate key, one of them had one and used it for me. I strongly believe however that you can use magic aggro to get the door open (it sure worked on the manipulator >.>)
Be warned however, that as soon as the NM pops it WILL use Searing Light. I took 597 dmg when I used my offering. Fortunately, I had read up on this and expected it so I told the pt to stay back while I died. One of them said it wouldn't happen, but I proved them wrong ^^.
Hope this helps.
Edit:
I almost forgot something very important. If the ppl you are with find themselves in a situation where they have to kill tonberrys (a given since you have to clear out the room where the NM spawns anyway), always CALL FOR HELP. This will stop the accumulation of tonberry hate which will come back to bite someone in the *** if Everyones Grudge is performed. I dont know how many toneberry's the DRK killed before, but when the NM did that move his 1300 hp disappeared in a heartbeat.
Needless to say he joined me on the floor.
Edited, Thu Jan 20 15:20:25 2005 by Atomisk