I'm quite certain the build in question is capable of both (call it a hunch), invisible lava notwithstanding.Speaking of mine, I was able to compensate trough gear up to a point, but some things are really hard to get by. For example I wasn't able to tank vBF HM on anything but DK and Warden, since the incoming damage is so high, and also the pulls in trash packs have to be quite fast and reliable as well. Wouldn't attempt vDSA on anything else since there you have to pull many adds fast in most of the stages as well.