Rag was hitting for 250k before mitigation. Warlord can hit for 180k on a normal block now. Even Chogall adds were hitting for 90k each with one stack.

-double post

From all these numbers being posted about boss hits, I've come to one conclusion:
If you are progressing on heroic content, stack stamina post-CTC.
A few fights allow you to stack something other than stamina (Morchok, Yor'sahj, maybe Spine). Most require at least 230k (2 stam trinkets) in order to survive the damage. Stamina provides the best survival this tier.

Thats alot of latency to desync it.You have to delay it cumulatively over the fight by more the five seconds to screw it up. assuming you press it 18times over the fight you candelay each and evey one by 277ms before you have it on CD for the 7th, not that you're really going to live past the 7th one for very long anyway.

First time poster here, just touching on the subject of crit blocks, and tanking Ultraxion. I was keeping an eye on my shield block buff tonight and notice that the crit block from it was seeming to stack upon itself, starting at 17% as I drop below ctc cap for this fight b/c of the uptime. What caught my eye was that at the end of the fight my SB was providing 53% crit block up from the starting 17%, could this be worth some looking into?

I assume you are referring to the H Indomitable Pride. H Soulshifter Vortex's proc provides the most mitigation of any trinket I've seen. It just happens to do so by adding crit block.

Let's say you block an attack that does, after mitigation, 120k. Since you blocked, H Resolve didn't help, but for every other swing it offers ~3.75% avoidance. If you have less than 240k HP, the attack brings you below 50% giving you an IP proc for a 67200 absorb. If you had a SV proc on the previous melee swing instead, you would have a 27.43% higher crit block chance. Provided you rolled crit block instead of block, you reduce the 120k block to a ~66k crit block. You get to keep the added crit block% for the next 20 seconds, providing more chances to get its benefit. At worst, you get one in four blocks converted to a crit block. Assuming a boss swing timer of 2.5 seconds you get 8 swings to get that benefit.

Yes, Resolve offers the best static avoidance. I just think that we shouldn't discount the mastery proc from SV when its benefit is just as good as IP, if not better.

Edit: ran some other values for blocked hits. SV is always a slight amount lower than IP's absorb for one crit block. When you value it at 2 crit blocks, it clearly beats IP.

Most of us have at least 40% crit block chance, and with HtL and SB up at the same time as HCSV, thats guaranteed Critical blocks.

On Ultraxion, check the tooltip of the Shield Block buff you gain when you use shield block. It tells you how much %crit block it is giving you. If you use Shield Block again before the previous buff runs out it will increase the reported %crit block from the tooltip. This combined with the fact that logs show people getting near 100% crit blocks is pretty conclusive evidence that using shield block again before it does run out is stacking itself, or that the way shield block calculates the crit block portion is "current crit block value including all procs + excess block over CTC" so the excess gets repeatedly added while to the existing crit block buff until you reach the crit block cap (100% total).

This is also a reason why a prot warrior can safely wear a very large amount of dps gear while tanking this fight if you're having trouble with hitting the enrage timer on 25man, though with the 5% hp nerf now it's not as big an issue as before.

At least for our warrior tank on HC ultraxion, after refreshing Shield Block 8 times, he still managed to recieve two melees from ultraxion that were not critically blocked.

I expect that your prot warrior let shield block drop at some point. Most likely, this is related to using Heroic Will when the buff is about to expire.

From my own testing, a prot warrior in ilvl 397 will only need 3 uses of SB to crit block cap. After that it's just a matter of making sure the SB buff doesn't fall off.

Look at these two parts.

Shield Block's duration is 20 seconds on Ultraxion. It looks like SB was not refreshed in time, so it likely fell off.