All posts in this series can be found here.
As promised at the end of my last post on Warlords heals, the next step would be to analyze more complex rotations involving multiple spells. This post will go into single-target healing rotations for each class, building on the overview of individual spells I did previously. Single-target rotations are only one slice of the healing picture, but one of the more readily quantifiable ones, making them a good place to start. Also, the need to directly heal tanks is expected to be a much bigger part of Warlords than it was in Mists.
On Modeling Healing Rotations
One difficulty in expressing numerical results of combined healing spells, especially cross-class, is that healers don’t use “rotations” in the same way DPS do. They’re constantly reacting to the demands of the encounter and modulating output based on that. A model of a pure max-output rotation akin to DPS is slightly informative, but rather limited because that’s an unusual mode of casting. Since you spend nearly all your time somewhere in the middle of the sliding scale of mana usage vs. healing output, it’s hard to nail down exactly what numbers to measure or model. We can choose cases to model that are informative, but it takes more thought to motivate the decision of what those are. The assumptions also have to be made clear so people understand what the numbers represent.
The usual way I approach this is anticipated by earlier posts in this series, and should also be familiar to anyone who used my TreeCalcs sheet in Wrath/Cata/Mists (for this post, I actually put the heal chart from the prior post into the WrathCalcs/TreeCalcs shell). I assume a certain subset of spells are used whenever possible: on cooldown, whenever a HoT expires, or whenever procs/resources allow. All available cast time that’s left over is for “filler” or no-cooldown/spammable spells. In the case of the single-target model, the filler time is divided between a) the cheap direct heal, b) the expensive direct heal, and c) casting nothing. This flexibility in how to allocate the filler time is needed for two important purposes:
- One class filling all time with its cheap heal (for example) may not be parallel to another class filling with its cheap heal. The first class might do less healing but also use less mana in that comparison, but then equal the other class in both healing and mana consumption if it mixed in the expensive heal some. Every class has a different mana vs. healing profile, and being able to adjust spell usage allows more sensible comparisons.
- It provides a basis for evaluating mana. As discussed extensively in the post on mana, mana usage affects your use of non-cooldown heals much more than it affects your use of cooldown-bearing heals. In a more concrete framework like a rotation model, you can evaluate exactly what mana lets you do by varying the spell usage correspondingly. The conceptual chart in the final section of that post, describing healing done as a function of mana, will be revisited in this post.
This is of course idealized, as is unavoidable when theorycrafting healing, but it’s useful in a lot of ways. In particular, while in various low-healing situations you might use spells more in isolation and not nonstop like in a rotation model, we already have HPCT and HPM info on individual spells. Those can be looked up anytime on the spell chart form the last post. Models of rotations let us find out more about what happens when cooldowns and cast time become a limiting factor in how much healing you can do.
I’ve not yet modeled every talent and glyph combination for every class, but I’ve tried to include the ones that were especially relevant to the current analysis.