Just curious....why did they make it so Drums of Battle doesn't work at lvl 80? Being a shaman, I brought along not just heroism, but drums of battle every 2 min for trash pulls and to pop at the beginning and end of each boss battle as my "mini heroisms". They nerfed it once with tinnitus, so only one drum could be used every 2 min, so why make it so we can't use it at 80? None of the other drums received this nerf, and to be honest these were the only really useful drums out there. Can someone help explain this for me?