Well we do have that for the "weighted dice" from the start of patch 4.The good news is that the patch 4 "weighted dice" had a nice random distribution. (they were weighted to reduce streaks, the base RNG had a propensity to trend/streak).
The bad news is that a hot-fix replaced that set of "weighted dice"
with dice that are allowed to streak on high rolls.So now we get to choose between streaky dice and rigged dice.
Here is a post from a thread on the base-game RNG
links are great.
