Some of your success will depend on your group composition. If you have lots of passive healing (e.g.: shammy totems or DK self-heals, etc.) most of these become stupidly easy. I did about half of the above at 80 in mid-level (245ish) badge gear on my 5-pally team pre-4.0. At 85, these should be pushovers with the possible exception of the mind-control encounters. And even those may be silly now with people having 5x the health we had in WotLK. (Skeram, for example).
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