Pulled the trigger on that one yet
We buffed AMS because we dropped the mitigation of Icebound Fortitude and Bone Shield by a pretty Acheter des Gold hefty margin. One idea that has been circulating is to have AMS and AMZ share a cool down so that the death knight can not just pop both in rapid succession. It is possible this might make AMZ pretty unattractive in PVE though, which is why we have not pulled the trigger on that one yet.