In last week's hotfixes, Blizzard nerfed Arms slightly and buffed Fury a reasonable amount.
You know how the old saying goes: another beta cycle, another round of cool things gets the nerf bat.
Dataming of the latest Legion alpha build has uncovered a nerf to all raid-wide healing cooldowns.
Of all 11 classes in WoW, death knights have had the most dramatic evolution. From their beginnings as a supremely flexible "hero class" --with three hybrid trees -- to their current incarnation, DKs have ridden their pale horses a very long way.