1. Yes, all healing.

2. I just always have them in Obey, considering they do things at the WORST possible time. I just have embrace macro'd into Adlo and Physick on a mouseover. Heal 2 people at once? Yes please.

3. I try to not use Energy Drain to restore MP. But, if you die, or for some reason you spam Succor, I don't see the harm. It is all about knowing when to use your Aetherflow stacks and how the fight will be progressing through phases.