Originally Posted by
Danner
You can only outheal bad to some degree.
Missing a single interrupt? - you can deal with it if you overgear things.
Missing a chain of interrupts? Wipe. Nothing you can really do.
... Apart from handling the interrupts yourself.
I'm often doing that; the idea is that throwing out an arcane torrent and/or holy word: chastise can save me from having to do millions of healing later. Of course as a holypriest, my interrupt is stuck on a 1 cooldown, so a chain of them is still not really possible to deal with. And lots of boss abilities seem to be immune to Arcane Torrent this expansion. It used to be the other way around!
Doing a double pull? - you can deal with it if the tank overgear things as well.
In fact, probably easily, if the tank overgears things.
But no matter what you cannot really pull double output, so you can't really handle it on your own.
You absolutely rely on the tank handling the brunt of it.
If you pull all your cooldowns, you might be able to manage double damage for 10-20ish seconds.
After that it's all down to praying every single heal you land is a critical hit.
Which might just happen. Some groups certainly assume it will.
But eventually you are going to be disappointed, and then it's a wipe.
If the tank is undergeared, he's gonna take silly amounts of damage.
You have literally no margin of error, and need to spamheal him on every single GCD to keep him up.
The truly terribly geared tanks also rely on most of those heals being crits.
That is still doable, as long as everyone else is doing their job of interrupting and not standing in damage.
Of course... yeah, you know how it is.
The worst boss to heal in the game is definitively the serpent boss in eye of aszhara. The damage output is high, everyone is taking stupid amounts of damage, and that annoying wind is blowing you into stuff all the time. So you have to move. Which means not healing. Which means the tank dips down to 25% HP again. And you then have to spamheal him like crazy to get him up again. But now everyone else is nearing critical levels. So you pull a Divine Hymn or something to save the situation. It's _barely_ working. But OH no! You're being blown into a damage zone, and must move and cancel the effect! But the everyone dies! So you say fuck it and eat the damage anyway, taking deadly damage in hope to save everyone else while your divine hymn does its thing. Which really isn't working... but you seek to delay it as much as possible. And then you die from that damage, and everyone is like "WTF healer, why didn't you move!?" followed by a votekick.
But even as terrible experience as that is, it's still a whole lot more comfy than healing heroics in Cataclysm. Cata healing was like that for every boss, with an added "fun limit" of being able to cast 8 heals before OOMing. Legion healing is amazing in comparison, and pretty much great in general. Just avoid those undergeared tanks. You really cannot deal with them unless everyone else is on their A game.