Watching your video helps

You need to work on healing better. I see the priest draw agro get smacked around a couple times then try to heal someone before they heal themselves.

If you use focus you can make us a macro to heal the target of your focus (ie who the boss is hitting). This might make healing who the boss is after a little easier.

Maybe get ahold of him in that phase and just try to see if your healer can keep people up by standing in the pools.

Can you easily heal anyone of your team while still doing dps/tanking a mob?


Take your time and watch wants happening, don't make panic moves.
This is key I don't know how many times I end up doing stupid crap b/c I panic. For example pull like 4 extra guys on a pull do you
a) drop everything AOE and chain lightning away
b) treat it as the same just more healing needed.

I have gone from almost wipping to beating bosses by being cool headed (sometimes)