I dont think this is a repost and I have only tried this on ally side.
When you're in av move down to frostwolf keep and go to the warmasters. Now cast deathcoil on one of those warmaster ( not the dogs, dont work ) and you will do the same dmg as a normal Death Coil but you'll heal yourself to full hp, can be good to do if you're oom and life tap or if the hordes are defending.
Maybe someone can try this on the horde side?
EDIT: Forgot to say the warmasters must be out of combat![]()