Yeah, I'm a DK, the other tank is a Warrior (but he usually dies first).
The problem with rotating CDs is that I essentially have only 2 for this - Vampiric Blood and Icebound Fortitude.
IF makes me live, for sure. But VB doesn't do much - +40% healing is awesome in a LOT of circumstances, but in this case it's shit, because I don't get enough incoming healing to survive.
I'll have to check what we can do. Seriously, the WAR tank shouldn't be dying this quickly, though.
I'm a DK tank on this and I have to say you don't know your toolkit all that well if you say everything you have is just VB and IBF
-IBF, have something so you can see when it drop
-AMS is useful if you time it right, the aoe cleave thingy is nature dmg iirc
-Dancing rune weapon, again, have some power aura or good class timers that shows you when it is up, so you can time it with the rest
-VP like you said
-bone shield, I go in with it, when it drops I refresh it if the retreat timer is over 1 min, if it isn't i don't use it till retreat
-death pact when low
-empower rune weapon if you drop low again
-potion of the mountains
and last but not least, the most lol worthy one, unglyphed army of the death, cast it while you have DRW up, in my gear I have 30% dodge+parry, plus the 20% parry of DRW means basically a second IBF, plus the army taunts the small adds meaning they aren't hitting you
remorseless also helps, you just need to move a bit after to stagger their attacks again, or remorseless -> when they get out army