And your assuming that crit precedes block on the table? Your wasting your time, but its piss easy to test accounting for HtL and trinket proc. You don't need "2000+ melee" to disprove it, 1 normal block will be enough.

I did look at our most recent downing of him. I was trying to figure my average block value which appeared to be 61%. It appears I critically blocked every attack, or close to it. My gear improved a bit from that recent attempt. The logs are from when I was bouncing around the CTC threshold.

World of Logs - Real Time Raid Analysis

What might explain this?

With my question about Dodge & Parry versus Mastery at CTC, I was trying to look at a tank. One with 5% miss, 97.4% block and 77.4% Critical block. We cannot have such a tank, but would we want one? And am I correct to say that with shield block up, there would be all critical blocks? Spike damage of such a tank would roughly be: 1/4 X 1/4 X 1/4 = 1/64th of the time, your healers see 3 normal blocks in a row and be unhappy with you.

Found where a place where it was actually tested.

Stamina useless to tanks? please tell me - Forums - World of Warcraft

Conclusion: It is a 2 roll system. As I had suspected.

Thanks, Runtime, I appreciate you finding that.

The "surprising" part about my Burst Time analysis was that avoidance has a significantly longer burst time than stamina, not that mastery was somewhat close to stamina. Still, stamina is the best way to deal with magic damage, so we always want enough that a block+magic burst won't lead to tank death.

You'll also notice that I have two sets of data. The first assumes no crit blocks and attempts to check worst-case scenarios when we get bad RNG. The second deals with a warrior's average burst time, being the number of swings one expects to live until a deadly burst (assuming you are healed to full after each avoided attack). In the first, a mastery stacker gets squished in less than 70 swings with bad RNG (on a magic damage fight)! In the second, with normal RNG, we see that even the mastery stacker survives past 200 swings, or about 6 minutes on a 2-second swing timer.

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Ragnar, the idea of stacking mastery is not to take mastery above all else, but to get to the next breakpoint where mastery becomes less useful (I'd wager 60% crit block so SB+HtL gets you to the hard cap). With the itemization points you'd need to get there, I'd guess one could be at 5% miss, 20% dodge, 23% parry, 80% block (25.6% wasted outside SB). With those same itemization points I think we could get to 5% miss, 27% dodge, 27% parry, 43.4% block (23.4% crit block).

Essentially, we would choose between blocks 30% of the time (crit blocks 10%) and blocks 20% of the time (crit blocks 40%).
With even more gear we could choose between crit blocks as worst-case 40% of the time and still having blocks on the table, but with 65% avoidance.

Last Defender of Azeroth
1000 yd range
Blessed by Thrall the Earth-Warder with the immovable strength of the ancient stones of Azeroth. Defensive cooldowns reduced by 50%. Defensive ability durations increased by 100%

I really hope you guys aren't being sarcastic with the uncertainty (because then I look dumb), but Shield Block is affected by this. If you're good about it, then you can have nearly 100% uptime with it (barring it falling off during Hour of Twilight or Fade).

For the BiS gear sets I used, stamina is better only at hits of 215k+ before mitigation. Hits that large kill both types of tank in ~5.1 swings. With mitigation, a hit that big would deal 88,400 on a block. I haven't run the numbers, but is there a fight this tier that trucks the tank like that?

You can easily have 100% uptime on the block part. In fact, I think it overlaps the CD by about 5 secs, but you do wanna save it sometimes if you're soaking hour of twilight for the extra magic dmg reduction.

HoT is cast every 45seconds. Shield Block has a 15 second cd on this fight. Spell block has a 6 second Duration. hot has a 5 second cast time. If you cast SB on CD, you will have spell block up for every HoT

From what I can tell, pushing SB while you already have SB up will only refresh the duration. You won't get a second effect, so overlapping by 5 seconds or 1 second will make no difference. Just make sure you don't let it drop.

SB should take any block over 100% and add that to crit block. At minimum, a CTC capped tank will get 27.4% crit block from SB. Provided you were getting double benefit, you would definitely see 0 regular blocks.

Mechanically, my guess is that the first SB increases your block by 27.4%. When you push SB again it increases your block by 27.4% again, but because SB never falls off, you don't lose the benefit of the first one. Were this happening we could see it at the character screen. Maybe it stacks infinitely? Now I'll have to go check...

EDIT: I'm sure this isn't really what's happening. Seems ridiculous.

Since you can't queue up abilities that are on cooldown, SB might get pushed out of sync to much depending on your latency. Still, it's easy enough to hold off on it for 5 seconds to re-synchronize.

Is that 100k with no sunder stacks or is it 100k with 1-2 sunder stacks? I discounted the fight because the numbers are always variable, based on enrage percent and sunder stacks. I couldn't figure out what a basic weapon swing does. I'm certain at 1% health he's trucking the tank for near 150k+, but you only need to survive 1-2 swings at that point.

Is the roar physical damage AND blockable? I figured it was unavoidable physical damage, like Impale on madness.


EDIT:Because Blackhorn hits so hard, stam stacking seems like the way to go if you're having trouble at the end of the fight. If the adds are your problem, I'd gear for avoidance.