Honestly, it depends a lot on the fights.
My problem with how people use cooldowns
The way most people handle cooldowns is just sticking everything into a macro and pushing it a bunch, or macroing it into their heals, or all kinds of other silly stuff.
I’m very opposed to this - healing cooldowns should be used intelligently, not just - “OH CRAP LET’S BLOW EVERY COOLDOWN NOW.”
SOMETIMES, it is a good idea to use multiple cooldowns, even 2 or 3, but only very rarely would you even want to use all of them at once - that’s a huge waste. Let me give an example of how to stagger cooldowns.
An example I'm about to get flamed (lolMagmawpun) for
For example, let's pick Magmaw (in before 12 posts of "LOLOLOLWHYWOULDUNEEDCOOLDOWNSONMAGMAW"). I know, it is an extremely easy fight, but it is an easy example that most people can relate to. Most people on these forums have done normal Magmaw, probably successfully.
Just pretend you were 1-healing it for a World of Logs parse or something.
Now, the most dangerous ability for healers to worry about on Magmaw is probably Lava Spew (well, mangle too, but that is really easy to heal through on Normal with Beacon and maybe a Divine Light or two if your tank is smart and uses his cooldowns and you use Hand of Sacrifice). Lava Spew is cast around every 20 seconds (besides during Phase 2) in a series of quick bursts on the entire raid. Knowing that, here's an example of how I might use my cooldowns
Cooldowns on Magmaw Normal
You'll want to use a Divine Favor right before one of his Lava Spews (his first one if no other healer is using cooldowns at that point; make sure to coordinate with them), and you'll want to Holy Radiance right when he casts it. The reason for this is that Divine Favor's haste buff affects the Holy Radiance cast, giving you a few extra Holy Radiance ticks than usual. You'll want to use Holy Radiance basically nearly on cooldown in Magmaw anyway (after every Lava Spew). You'll also want to be saving Light of Dawns for his Lava Spews too, and throwing Hands of Protection on people who fail on Pillar of Flames (it prevents fall damage AND prevents the worms from latching on!).
As for stuff like Avenging Wrath, use that right after another a different Lava Spew (usually, stacking the cooldown with Divine Favor wouldn't be a terrible idea, but we are talking normal Magmaw here, most of that would be overhealing).
Using Aura Mastery on a Lava Spew your other cooldowns (Divine Favor, Avenging Wrath) aren't up for is a great idea too.
Guardian of Ancient Kings - same idea.
How Lava Spew Works
A quick analysis of my combat log shows something like this:
0:00 - Magmaw pulled
0:22 - 1st Lava Spew
0:44 - 2nd Lava Spew
1:07 - 3rd Lava Spew
1:34 - 4th Lava Spew
2:29 - 5th Lava Spew
3:01 - 6th Lava Spew
5:06 - 7th Lava Spew
5:31 - 8th Lava Spew
6:41 - 9th Lava Spew
Dead
Lava Spew lasts for around 3 seconds, and ticks around 3 ticks on each raid member.
How to Plan Cooldown Use
In response to seeing a combat log like this, I'd do a quick plan.
0:00 - Magmaw pulled.
0:22 - First Spew. Activate Divine Favor. I'll use my Holy Radiance and Light of Dawn (should time Holy Power for this - account for Blessed Life too)
0:44 - Second Spew. Using Avenging Wrath here because my Holy Radiance is still down. Light of Dawn too, of course. If you have another healer friend, ask them to use their CDs here too.
0:52 - Holy Radiance comes off cooldown.
1:07 - 3rd Lava Spew - Holy Radiance. Using Aura Mastery here.
1:34 - 4th Lava Spew - Guardian of Ancient Kings on 5x Divine Lights (or maybe 3-4x DL and 1-2 HS, really varies tbh)
1:37 - Holy Radiance comes off cooldown.
2:29 - 5th Lava Spew - Holy Radiance - potentially ask a friend for CDs if things get bad, probably won’t since you’ve been keeping people up near full with all your cooldowns.
2:44 - Avenging Wrath comes off cooldown.
2:59 - Holy Radiance comes off cooldown.
3:01 - 6th Lava Spew - Holy Radiance and Avenging Wrath
3:07 - Aura Mastery comes off cooldown.
3:22 - Divine Favor comes off cooldown.
3:31 - Holy Radiance comes off cooldown.
5:01 - Avenging Wrath comes off cooldown.
5:06 - 7th Lava Spew. Activate Divine Favor. I'll use my Holy Radiance as well.
5:31 - 8th Lava Spew. Activate Avenging Wrath. If you have another healer friend, ask them to use their CDs here too.
5:36 - Holy Radiance comes off cooldown. Use it immediately to help heal remaining Lava Spew damage.
6:06 - Holy Radiance comes off cooldown.
6:41 - 9th Lava Spew. Activate Aura Mastery and Holy Radiance
Note: I rewrote these more than once - when I was going down through it, I’d realize, hey, I don’t end up with any cooldowns here, or I’m not maximizing my cooldown usage on X. You can’t just write them once and call it done.
Now of course, these timings are not exact and are very rough and change between attempts (use Timers though - they are usually accurate in Cataclysm - things are preeeetttyy scripted). This still gives you a good idea like…
Rough Final Ideas
- Start
- 1-2 seconds before the first Lava Spew, use Divine Favor. Then use Holy Radiance when it hits.
- 1-2 seconds before the second Lava Spew, use Avenging Wrath. Ask a healer friend for CD help here if possible.
- 1 second before the third Lava Spew, use Aura Mastery (it has a short duration, but you want to use it preemptively to get every tick of Spew covered!). Use Holy Radiance when it hits.
- 1-2 seconds before the fourth Lava Spew, use Guardian of Ancient Kings.
- On the fifth Lava Spew, use Holy Radiance. Potentially ask a friend for CDs if things get bad, but things probably won’t since you’ve been keeping people up near full with all your cooldowns.
- 1-2 seconds before the sixth Lava Spew, use Avenging Wrath. Then when it hits, use Holy Radiance.
- 1-2 seconds before the seventh Lava Spew, use Divine Favor. Then use Holy Radiance when it hits.
- 1-2 seconds before the eighth Lava Spew, use Avenging Wrath. Ask a healer friend for CD help here if possible.
- Immediately when Holy Radiance comes off cooldown after the eighth Lava Spew, use it.
- 1 second before the ninth Lava Spew, use Aura Mastery. Use Holy Radiance when it hits.
- Dead Magmaw
I’ll probably go into the fight and do something fairly similar to this, and things will work out pretty well.