I'm liking vivify in groups, but I've played a lot of priest w/ glyphed binding heal and really like it in pugs
and as for mana, you're basically fucked unless you have phylactery as any class atm, I recommend spirit of the crane though, I'm not finding as many meaningful EM casts as I'd like to be in a lot HFC fights, but on the ones where it won't just be a ton of overheal, I'm liking lifecycles
and yeah focused thunder or rising thunder just for constantly throwing out as many ReMs as possible seems to be working pretty well on a lot of fights for me, getting RSK's cd down for more ReMs seems like it'll be very impactful in the coming year
We've defnitely gone a long ways away from super spam tot/soo mw though where we were punished in chi and tea gen for taking 1 gcd off
and yeah I really think extend life was a great system and that this rework to make mana matter again could've been done w/o reworking the whole class, I'm just really afraid that in doing this, they'll either A. realized they repeated cata release in making healing strat and mana efficiency too hard and that 90% of the playerbase wont be capable of doing normal 10 mans again, or B. disappoint everyone when they realize that this healing gameplay can become incredibly slow and boring and everyone goes disc for the like 5th xpac in a row