From [19:09:26.812] to [19:09:27.890] Orky took 34,353.  That was a particularly rough one second.  This is daunting! 

Well it didn't work for us cause of several reasons tonight.

1.  Orky got hit.   Not quite unhittable?  Or just got behind?

2.  Orky being just barely at unhittable means the 2nd priority wasn't looked into.   Block Value.  That is what's needed to make the hits smaller.

Here's a vid of a One Tank strat, from that tank's PoV, maybe ignore how they kited though.

 

You'll notice a few things.   The blocked hits were never above 3K.    I calculate to achieve such a thing if Orky was taking 5K blocks, he's about 600 block value behind that tank.

A 2nd thing to make is how the adds are simply drawn to the permafrost.   We def had issues with people not adjusting to permafrost (hiding behind them) which made adds come in at weird angles on some attempts.

A 3rd thing is that they kill the adds in about 20 seconds flat.    At our best we were doing it at 30-35 seconds.   Besides pushing buttons harder, getting adds to move in faster....   If possible, everyone should probably look into a more aoe oriented spec (within reason that doesn't totally gimp the single target dps).  

 

As for the Shadow Strike, I think people are still under the misconception that a visible cast bar interrupt is needed to interrupt it.    If you got stuns, they last what, 3 seconds?   All it takes is watching that timer, 2 seconds before, stun.    Just need to force them into "forgetting" to cast it when the CD is up.

 

So, the one tank strat can work for us.   We just still don't have a tank geared up to par for it yet...

Anyways, I'll leave you with the Pros and Cons section from TankSpot for each of the strats:

 

Two Add Tank Strategy:

Pros-

1. Damage Mitigation

The
damage mitigation between the two tanks is split even more so than with
using just one which can take a great deal of stress away from your
healers. If you don't quite have all of the gear in order to tank the
adds or have the full unhittable set it is not as detrimental to their
damage intake as opposed to using just one. By using only one add tank
it is absolutely necessary that the tank has 101.6% avoidance or it
simply will not be possible.

2. The Shadow Strike cast!

This
is probably one of the main problems of the encounter to overcome and a
large weight on the selection of the number of add tanks used. Now by
using two add tanks it allows for the cast time on the adds of shadow
strike to be 2.1 seconds as opposed to a 1.3 second cast when all four
are grouped together. By splitting the distance between the adds and
having each tank pick up two each it makes the cast a lot easier to
interrupt and attack speed time of the adds reduced significantly.
Basically when using two add tanks you want to just assign either a
Rogue, Shaman, or Death Knight to each of the adds to interrupt the
cast. As you will find it makes this specific role of the fight to be
much easier.

Cons-

1. DPS

The
damage on the adds as well as Anub himself will be decreased by a large
amount. The placement of the adds can be very sensitive with all of
them being in range of various classes AoE abilities and their buff
that increases the cast time. Basically what you want to do is get them
close enough for all AoE to hit them without them gaining more than two
stacks of their buff. You will quickly notice that the uptime of dps on
Anub will decrease and a majority of the time will be spent on adds and
AoE.

2. Phase 3 Leeching Swarm

With
having two tanks tanks on adds greatly increases the amount of healing
done back to Anub in phase three, which could also make it quite
difficult to meet the enrage timer if your guild is lacking dps. The
main tank will do roughly three million healing back to Anub and each
of the add tanks will do around two million, most likely a little bit
less depending on the amount of time you spend in phase three. The add
placement and dps is going to have to be almost flawless in order to
reach the enrage timer for this fight if you decide to use two add
tanks.

One Add Tank Strategy:

Pros-

1. DPS

With
using just one add tank it increases the dps of the raid tremendously
due to the fact that you have that extra dps slot in your raid
composition in replacement of the extra tank and the adds are always
going to be in range of all AoE and will get in place quite quickly in
order for dps to start on the adds. As a result of the adds being in
range of all AoE and Anub himself it will clear up for a lot of single
target dps on the boss. The adds will take roughly 15 to 20 seconds to
kill from the time they are all in place and that will give all the dps
time to focus on just Anub for 20 seconds or so until the next wave of
adds spawn.

2. Phase 3 Leech Swarm

As I stated above it will make the time you spend in phase three a lot less thus allowing for a easier enrage timer to meet.

Cons-

1. The Shadow Strike cast!

This
is one of the main reasons that guilds tend to not use this number of
tanks for the encounter because it makes the cast almost next to
impossible to interrupt due to server lag, player latency, as well as
individual reaction time. The only way to successfully go about the
adds with this strategy is to stun and silence them during the shadow
strike cast cooldown and burn them down as fast as physically possible.
Now I will not go into detail on this topic unless people have specific
questions on it, which I will be more than happy to answer.

2. Add pickup

Using
one tank is going to cause the add pickup to be impossible to do
without having Rogues use tricks and Hunters using misdirection on the
tank. What you are going to have to do is have hunters misdirect the
farthest add spawns to the tank and have Rogue(s) tricks the close
spawns to the tank. Now how you set that up is based on the number of
those classes you have available in your guild.