I kinda get where you're coming from when I consider running Mhach City 15 times has not rewarded me with a caster body drop even once. 30 hours of my life wasted with no reward. And it's my second week in and it still hasn't dropped.
I must agree though that we need more then these cookie cutter stats that only buff your main attack stat or have very menial reduction on the GCD.
Don't even have stats to buff up your defense more.