For the love of all that is holy, do not use RoRo as a WW. This guide was created and useful at a time when mastery increased the damage of TeB. Because of the scaling synergy between RoRo and our mastery, WW mastery was changed to increase the chance we would proc another stack of TeB instead of increasing its damage. This change negated the benefit of RoRo for WW monks.
I'm keeping this guide intact because it took a bit of time to create it, and it might be fun to look back at in a couple years' time.
TL;DR: DON'T USE RoRo ANYMORE. IT'S NO LONGER A DPS INCREASE TO DO SO.
Introduction
There are a lot of threads in the Monk forum about the Rune of Re-Origination, but many of them are from 5.2 PTR and contain information that is either outdated or purely speculation. My intent for this thread is to assemble all of the relevant information that is both factual and up-to-date into a single, formatted post that is aimed primarily at those just beginning to use the Rune. If you find anything that is erroneous, or if you believe I need to add anything else, please let me know
The Basics
The rune procs, on average, around once per minute, give or take a handful of seconds. When the rune procs, you will receive a buff called Re-origination.
When the rune procs the Re-origination buff, it takes the two lowest stat ratings from mastery, crit, and haste, adds them together, doubles that number, then adds it to your highest stat rating at the expense of lowering your other two stats to 0 rating. It only counts stat ratings that you get from gear, trinkets or weapon procs, and professions, like the extra crit perk you get from skinning; it does not count castable buffs like the Mastery buff from Blessing of Might. If you're doing it right, your highest stat should be your mastery with your crit and haste as close to your mastery rating as possible. Mastery is the stat to choose here for one reason: you can gain an obscene increase in your overall damage from Tigereye Brew.
Practical use
The basics
When the rune procs, you wait to pop TeB until the Re-origination buff has almost expired. While you're learning to use it, it's best to wait until there are about 2 seconds left on the buff. If you try to cut it much closer than a second, you may run the risk of having Re-origination fall off before you cast TeB. The reason you wait until the buff is about to expire is because TeB snapshots your mastery when the spell is cast. Once you've cast it, you'll have a second or two of no haste and crit with TeB, and 13 or 14 seconds of TeB with all of your stats at their normal values.
In-depth
You can't use a cancelaura macro to just cast TeB and cancel the buff, so you'll have to live with energy starvation for 10 seconds or so every minute on average. If you're near a full 10 stack but on low energy while the buff is active, use energizing brew to gain some energy and get your 10 stack. If you're over 10 stacks, just live the with energy starvation, and pool chi with jab or expel harm. With about 2 seconds left on the re-origination buff, pop your TeB, use RSK, and either FoF if you can remain stationary or Energizing Brew if it's available to regen your energy.
You should always try to keep a stack of 10 TeB tucked away for when the trinket goes off, but if you're getting to 16 or 17 stacks, use it with Dancing Steel or some other proc, and if it gets to 19 or 20, use it immediately. It's almost always a DPS loss to lose stacks of TeB from capping. If the rune procs while you'r under the effects of TeB, you should still reapply TeB like normal when there are a couple seconds left on the Re-origination buff.
The rune has a 22 second ICD as well as an RPPM of around 1, depending on the ilvl of your trinket. If you unequip the trinket and reequip it, it will reset the RPPM timer and trigger the ICD on the trinket, so it's great to do that before most boss pulls. Doing so will allow you to stack up at least a few stacks of TeB before it procs for the first time on a fight.
Gearing
With the rune, secondary stats are better to gem than agility since each of your secondary stats in now worth more than half of agility, and you get double the amount of secondary stats on gems. You'll find that trying to reforge, regem, and re-enchant all of your gear manually after getting the rune can cause migraines. There are a couple of tools out there that will aid you in this process, and unless you happen to be Rain Man, you'll want to make full use of them. I find the easiest tool to use for this is called Zephyrus. Zephyrus was originally made for feral druids to maximize their use of the rune, but the folks over at FluidDruid were nice enough to give us a version that works for monks. You can find the latest stable release here: fluiddruid.net/forum/viewtopic.php?f=3&t=4574&p=16593
Be aware of procs that change your secondary stats, like the haste proc from Talisman of Bloodlust and the mastery, crit, and haste procs from Windsong. It is advised that you do not use enchants or trinkets with short acting procs that increase or decrease your secondary stats, as that can cause the rune to convert your secondary stats to a stat other than mastery.
If you're at a lower ilvl, I'd say below 510 or so, you should run your character through Zephyrus to see if you'll be sitting at a comfortable haste rating. I like to keep my haste above 6500, but just about everyone has their own personal comfort zone for haste, so I can't give you a good, hard number. If you're under whatever haste rating you are comfortable with, I'd advise against using the rune until you can get there.
Addons
I recommend an addon like weakauras to keep track of the 10 second buff that it gives you, and optionally the 22 second ICD.
Link to weakauras string to track the 10 second buff: http://pastebin.com/mGyJfzLp
Macros
You cannot use a cancelaura macro to cast TeB and then remove the Re-Origination buff. Refer to the first sentence of the In-depth subsection of Practical Use for more info.
The following will switch the places of your two trinkets, putting them both on CD and pre-pot. This is best used before a pull.
Alternatively, if you only want to refresh the CD on the rune, you can use the following, but it will require you to carry an extra trinket in your bags and you'll have to click the macro twice:Code:/equipslot 13 Rune of Re-Origination /equipslot 14 Rune of Re-Origination /use Virmen's Bite
Or you can use a second equipment set that includes all of your normal gear, minus the rune and then use an equipset macro, but you'll still have to use the macro twice:Code:/equipslot 13 [Name of the trinket in your bags] /equipslot 13 Rune of Re-Origination /use Virmen's Bite
AdvancedCode:/equipset [Name of your set. The name is case sensitive] /equipslot 13 Rune of Re-Origination /use Virmen's Bite
Proc Rates
The rune has a base RPPM of 1.012, modified by the ilvl of the trinket. The base ilvl used for calculations is 528. Any rune below ilvl 528 will have a RPPM below 1.012, with the opposite being true for runes above ilvl 528. The rune also scales with haste.
You can use the following formula to determine your average procs per minute:
Code:1.012 *1/(1.15^((528-[rune ilvl])/15)) * (1 + [haste rating] / 42500)
To determine how many seconds that is, just take the above and divide by 60.
Code:60/(1.012 *1/(1.15^((528-[rune ilvl])/15)) * (1 + [haste rating] / 42500))
WolframAlpha describing procs in seconds. Just replace x with rune ilvl and y with haste rating: link
Proc rate multiplied by 0.1 for non-agility specs. Proc rate multiplied by 0.25 against player controlled units.
A big thanks to Requital and Hinalover for information on proc rates
Calculating Mastery
The trinket uses only your crit, haste, and mastery ratings from gear and short acting buffs like those from trinkets and weapon procs. Any extra buffs from the raid like Blessing of Might, for example, don't count towards what rune does. A bit of quick math will tell you how much extra damage you'll get from TeB. Let's call x the value of your haste, y the value of crit, and z the value of mastery.
Just for the hell of it, let's say that x and y both = 7000 rating with z = 7001. So, without the trinket, your 7001 mastery will give you 4.94% per stack. With the rune buff, you'll have 38,000 mastery including the mastery buff, which equals 15.29% per stack. As you can see, with the rune, 7000 mastery is about 3.1 times stronger than without.Code:Mastery without the trinket proc: z + 3000 (3000 is from the mastery buff) Mastery with the trinket proc: z + 2 * (x + y) + 3000 TeB damage increase from mastery: 1% base from TeB + 1.6% base from the mastery + 1% per 2995 rating. TeB damage per stack: 2.6 + [mastery] / 2995 TeB damage per 10 stacks: 10 * [TeB damage per stack]
Expanding on the above, we can also calculate at what point a low stack count of Tigereye Brew with the rune equals a 10 stack without
The limit for this function approaches 2. 3 stacks is the smallest reasonable count to reach but would require a bit over 15,100 rating in each stat, which may not be feasible for this expansion. For most practical purposes, I think 4 stacks will be the minimum for breaking even with a 10 stack. Personally, I'm not sure how useful this info is, but I thought I'd post it since it seemed marginally interesting.Code:Minimum stacks with rune to equal 10 stacks without: 10 / ([TeB damage with rune proc] / [TeB damage without rune proc])
If you want to check out the math in action, here's a link to WolframAlpha with the minimum stacks formula already input: Link
Miscellany
Like any other trinket, if it is unequipped and then reequipped, that will trigger the ICD and restart the RPPM timer for the trinket. In a fight where BL/Heroism is used at the start, it may be a good idea to keep the trinket equipped if you want to ensure a proc during BL. Since we discovered that 4 or more stacks of TeB is about equal to blowing a 10 stack, if you pool chi prior to the pull by casting expel harm, you can get at least 3 stacks in the 10 second window that rune is active in the first 10 seconds after the pull, ensuring you get the full 15 seconds of increased damage during BL. I'm still not 100% sure that it's a DPS gain to do this, but I figured I'd mention it.