Butcher, Brackenspore and Margok (M) are fights where you can be white swinged from 100->10% and then dead just like that if youre not careful and really plan your/your healer's CDs.
On butcher I told the monk tank "Sorry mate I really need every healer cd, I can give you like 1 hand of sac during this timeframe, other than that I need everything". This was also with me letting him take as many cleaves as possible (his elusive brew uptime is just silly, he basically never got any dot stacks), taunting just in time so he never got the 3rd tenderizer.
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Currently progressing on Margok and if it werent for our retarded cleave (currently top1-3 on dmg every pull) I almost think my 640 warrior would be better on the fight overall by taking like half my dmg my DK does even though hes 30 ilvls lower. Blood shield is just a complete joke compared to shield block/SoR/stagger+guard, and both pala and monk do about the same healing death strike does...