Once again Blizzard show no respect for players time. you have to run a few nightmare dungeons to get enough rep for 1 cache, then when you open it.. it's completely useless for your spec. Of all the chaos armour i've had drop from various sources so far not one has been useful. this along with the dismally low drop rate of Ancestral unique gear AGAIN is just making season 10 look like it's going to be another long grind for minimal rewards. I thought games were supposed to be an escape from the daily grind of life?
Good luck.