
Originally Posted by Maraili
Although I've read this entire thread, in particular the discussions that concerned spell haste, I'm somewhat confused by what Malthrin said back on post #1241, mainly that the proc for [Scarab of the Infinite Cycle] isn't any good and that Tree healers should pick up some other trinket to use. I bring the thing to ZA/BT/MH (I duo heal ZA and we're 3/9 BT, 4/5 MH) and I have found the proc invaluable for helping to deal with raid damage while keeping my hots up on the tank. I believe the proc time is ~10%, but I'm not sure if/what the internal cooldown is, which I guess is what would severely limit its usefulness, at least as far as I can see.
I understand why people don't like the random +Healing procs from the SSO necklace or the Hyjal rep ring, but this, to me, is something completely different. Is it disliked because it can interfere with rotations for rolling hots on multiple people, or is there some other logic that I'm just not seeing?
This is my first post here, so I apologize if I overlooked something, and thank you for taking the time to clear this up.
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The internal cooldown of scarab is 45s.
Source
You allready have your hots running on the tank, haste is not going to make that any better. This proc probably (I haven't used a scarab since HT spam days so please confirm this) allow you to fit in an additional hot into your rotation to spot heal the raid. So, how good is this comparitively to the +18 heal gained from
[Essence of the Martyr] or
[Battlemaster's Perseverance]? (yes, I'm going to low ball EotM...by a lot)
A single lifebloom or regrowth will give you roughly these numbers assuming 2550 healing. Account for internal cooldown of 45s to get heal per minute...
Lifebloom = 4014 * (60/45) = 5362
Regrowth = 6882 * (60/45) = 9176
vs
Gain of 18 heal on all your spells. Let's assume you have a single tank and are running a rotation of lb*3,rj,lb,rg -> lb*3,lb,lb,rg...
lb*3 = 36
lb = 20
rj = 22
rg = 21
Over a 1min time period you have 10 (60/6) rotations, 5 of each, so you would see the following spell usages...
10*(lb*3) + 30*(lb) + 5*(rj) + 10*(rg)
10*(36) + 30*(20) + 5*(22) + 10*(21)
360 + 600 + 105 + 110 + 210
1385
So scarab comes out pretty far ahead with 4K healing for lifebloom or a massive 8K for regrowth. However, this is the best it will ever get on paper for multiple reasons. For starters, I have ridiculously high amount of +heal, the more heal you have, the bigger bonus you get from haste. Second, I'm lazy with my napkin math and low balled EotM. Third, I'm assuming the trinket procs every chance possible. Fourth, we're just talking about heal throughput here, doesn't mean you can actually make use of the effect. Which brings me to actual gameplay.
There's a chance for this trinket to proc, and that messes things up. Its fairly easy to waste the proc. What if there is no one to heal? What if you didn't notice the proc and clip existing hots? Worse yet, what if you noticed the proc late and lost the triple stack? What if your lagging?
People's issue with the scarab is although it looks great on paper, its not reliable. If you don't get that extra hot in, you could be using a better trinket. That's why
[Redeemer's Alchemist Stone] and
[Essence of the Martyr]/
[Battlemaster's Perseverance] are the prefered trinkets untill you can pick up
[Memento of Tyrande].