It seems to me that these new dungeons are more towards dps than anything else. I'm a whitemage and i've seen it all. From players not wanting or willing to take the stack when the tank try to pass it to them in the first boss, even after this is explain to them. When the first boss targets a player he will leave that player with 1% mp, as long as the healer uses ensuna to remove the negative stack, the healer will have enough time to bring that player back with a médica II. It took me reading about it to understand what I was doing wrong, but after I did it was a piece of cake. There is enough time for you to remove all stack and heal your party....I hope this helps!!!!