you realize you can't acctually do that to blood DKs?
The only thing good about them now is their mastery, and now you are going to nerf it so it only absorbs physical damage?
All other classes has a one handed weapon and a Shield, except for druids, but druids has loads of cooldowns and other stuff, blood dks has mastery, and mastery only since they can only use a 2handed weapon. So blood dks without its full mastery will be the absolute worst tank, and it doesnt help that they only have 1 cd to use, with a to long cooldown unless you glyphed it.
So this a way to big nerf. Bad blizzard.