A short time ago, I began to wonder if Binding Heal had a higher chance of triggering Surge of Light than other spells that are included in the talent. I set out to try and prove this, but only got so far, mostly due to my lack of experience with theorycrafting and number crunching. While I felt like I had made some progress in proving my point, there was a lot more that could be done to make my case.
Enter Velidra, a warlock blogger and acquaintance of mine that I met through Twitter. He saw some potential in what I was doing and what I wanted to accomplish and offered his assistance with this. Yesterday, he sent me the table below and an explanation of what he did and what the following numbers mean.
Would Binding Heal trigger Surge of Light more? Let’s find out!
|Spell||Recording status||Casts||Procs||% Chance|
|Binding Heal (both halves)||Done||17034||1064||0.062463308676764|
|Smite + Atonement||Done||6076||374||0.061553653719552|
Using a G19 keyboard, Velidra created a macro that would press a button (which would be tied to a corresponding heal) every 0.5 seconds until stopped. He would then leave the keyboard and the macro running overnight or while he was at work or away from the house. Velidra did this six times or once per spell tested.
You can see from the chart which spell was used, how many times it was cast, how many times it triggered Surge of Light and the overall percentage rate of the triggered effect. You can also see that Velidra chose to test Smite by itself and then Smite with points in Atonement (to see if the heal that comes from Smite would also have a chance to trigger Surge of Light).
As expected, each heal had about the same chance of triggering Surge of Light as the others, or a 6% chance. It’s interesting to note that each half of the heal from Binding Light (because it heals 2 people) had a 6% chance to trigger Surge of Light. This means when you combine both heals from Binding Heal into one and read the corresponding row on the table, you see a combined proc rate of 12%.
Binding Heal triggered Surge of Light twice as often as the other spells listed, because it healed two people at the same time and each heal had a 6% change of triggering the Surge of Light effect. So it would seem that my theory was correct!
What does this mean?
It means that we now know that there is a spell, out of the five or six that are capable of triggering Surge of Light, which has double the chance to give you a free heal that would typically be seen as expensive or inefficient if you were casting it on its own (Flash Heal). This means that the more we use Binding Heal, the more often we will have stacks of Serendipity, which means that we could start seeing more Greater Heal usage and that Prayer of Healing can be cast more quickly and at a reduced cost.
These are all potentially great things that I feel continue to give healing priests a lot more versatility. This also gives us the opportunity to find use for spells that we typically wouldn’t use, because we feel they’re not appropriate for a situation, too expensive or because they take too long to cast. Knowing how Binding Heal ties in with Surge of Light could stand to change that and make those inefficient heals that Blizzard said we should get used to using a lot less painless and a lot more fun to use.
An enormous “Thank You” goes out to Velidra, for coming to me with this amazing idea and taking time out of his schedule to do this, to organize the results and to explain them to me. He deserves most of the credit for everything that you see here and I hope you all find some use in what we discovered together. Feel free to stop by his blog sometime, if you’re ever in the mood to read about all things warlock, with a side of general PVE commentary or reach out to him on Twitter.