Good point, for high healing threat situations or melee AoE damage on freshly spanwed adds (e.g. multiple mistresses on heroic Lord J) you can sacrifice some long term efficiency for threat right now. Most cases though PS + IT + Pestilence on the main target and a death coil into the other target will hold it.

The original poster just outlined a generic thought experiment so I answered with my usual routine. A Death Coil to the taunt target as it runs in towards you can't hurt either if you have lots of RP at the start of this situation.

I tank NRB for my guild, I'm a DPS mainspec but often have to tank NRB in particular. I've not found myself having any significant difficulty with it over our warrior or pally; worm breath and paralytic toxin are mitigated by AMS (I can usually time an AMS cast to the first toxin application when acidmaw is above ground, preventing me from being gibbed if nobody in raid has gotten burning bile yet), impale damage doesn't hit us significantly harder than any other tank, VB on a 1-minute cooldown makes transitions between tanks much smoother than it used to since I can pop it just before taunting to avoid being gibbed by spike damage. I typically gear more towards avoidance than raw stamina and it's worked well for me, I sit around 47K buffed with ~62% avoidance.

For faction champs I respec 2H PVP frost with hungering cold and wear tank gear / go frost presence, and pull by popping it in the middle of their group, then apply frost fever with chillblains specced and pestilence it to as many of them as I can and HC when off cooldown while attempting to stay on the shaman or paladin healers for interrupts. I'm my guild's only DK and doing this has made the encounter much, much easier. Log parses show me taking by far the most damage in the fight, at one point early on spiking at taking 20k DPS from them without issue. Using this strategy makes the fight -predictable- which is the most difficult aspect of it, because the NPCs will generally focus someone random and kill them in the space of a single GCD, but with FF/chillblains and HC applied to a majority of them, their focus is on me much more often making healing predictable while DPS can focus down their target without much interruption.

That said I can't really tout survivability the way a paladin or druid can. Our druid breaks 80K HP with survival instincts / trinkets up, and a paladin's 1-up ability can save a wipe if healers make a mistake. If a DK is tanking and someone makes a mistake, it's more likely going to cause a wipe than if a paladin or druid were tanking, IMHO.

Does anyone know if Chill of the Throne will be resistable? If it is, then Acclimation and Magic Suppression may be a lot more appealing than they have in the past.

For the record, it looks like Chill of the Throne being everywhere in IC is a bug. I'm guessing it'll only be on the last wing or the actual fight with Arthas.

Death and Decay is still a useful tool in any AOE tanking situation regardless of spec. Spamming Blood Boil (when Blood specced) is an effective sustained AOE threat generation tactic, but Death and Decay will buy the precious set up time to get that rhythm going. I think that this is a bigger help to Blood Dks that typically struggle in high AOE situations. Sadly it doesn't offer much when MT'ing a single target encounter.

Not necessarily; they've shown good creative initiative for set bonuses. If RS and DnD buffing becomes too cumbersome, I wouldn't put it past them to introduce a "your x ability now causes 15% more threat when used in Frost Presence"

That's the thing though, Blizz has said many times they're not fond of "high threat" attacks, and will likely be even less fond of turning other abilities into high threat. They also don't like the "on next melee" abilities.

There are still some avenues like lowering the runic cost of RS, or perhaps giving it a little extra kick based on diseases.

I agree, but when you deviate from the model is becomes very hard to maintain balance; not that its balanced now. Frankly I would be happier if they gave RS a mini-cleave or something: RS hits up to 3 targets (including the primary) for 10% damage. In single target its a 10% rune strike buff (which has already been done) but also gives a buff to our AoE tanking.

I like the sound of this, but I think if they just increased the damage/threat of both our RS and D&D with the set bonus then it would be fine.

It'd also go a ways to improving the AoE threat of Blood tanking, which can't be bad.

I currently tank for my guild, and I love it. However, it seems that there are more and more reasons to not have a DK stay tanking. The main reason is that we are stuck on 25Man Heroic Anub. We get him to p3 constantly, and probably get him to ~15%. However, my healers are saying that there are times when I take too much spike damage and would like to make that part of the fight less random.

I currently raid Blood, but I am starting to think that Unholy may be worth it for Bone Shield. I have 4p T9.25 and off the top of my head I have around 31% dodge / 23% parry fully raid buffed.

So my question is two fold, is that enough avoidance to make Bone Shield worth it. Along with that, does Bone Shield reduce Leeching Swarms tick? I know that AMS will stop the tick, but is it treated like a DoT where it is reduced in damage but doesn't take the bone shard?