I've tried starting a fresh team of DKs on a new server to run with a friend of mine. Running 4 and keep switching up the specs to see what I like better. Been a while since I played them, but when setting up your dps macro, make sure to cast your diseases then spread them first before you land any hard hits or else you'll be taking down mobs without them up. Always go for the tanks first then the casters in these cases too. Usually the other way around, but its easier to mow them down if you can get your team to spread lay them diseases on the strongest one first then spread them. I've done this in Ramparts and the whole mobs, both warriors and casters went down at roughly the same time. Casters pretty much died from diseases instead of me smackin them around. Bloodworms are also great for healing yourself, but ineffective if you're not critting enough for them to pop. If you can, I would have a Ret Pally in there also for spot healing and casting DS in your dps rotation. My main team is in my sig and that's how I roll. If you get the Anti-magic shield, then put it and Death Grip on Round Robin.