Obviously being a game, it is hard to say that anything is truly random since much of the game is coded, but I think rolls from Phantom Roll are more "Bi-Polar" than "Random."
I'm sure many of you have had those "streaks" where you roll nothing but lucky rolls for an hour straight and then it completely turns around and roll nothing but unlucky for the next hour.
I seemed to notice this all the way up to 37 when I got my first useful II/VI Dice, Samurai Roll. First 5 times I rolled Samurai Roll, I got nothing but II's either by hitting II dead on or by doubling up on I and get I. After that, my luck turned quite sour. I busted on Samurai Roll twice in a row (leaving me double busted) by rolling exactly VI and attempting to get off unlucky busting on a doubled up VI. Again, this happened twice in a row. I chopped it up to a fluke.
Over the last 8 levels, it has happened almost every time I land on a VI with Samurai Roll that I will almost assuredly double up with a VI and bust (I stopped counting after my 5th repeated offense, but I am sure it has happened at least 10 times since I got the dice).
What I am getting at is the dice seem to be very hot or very cold all of the time. I have hit more unlucky or lucky numbers than any other combination of rolls. If I am rolling Hunter's or Chaos, I see more IV's and VIII's than any other roll, and then when I rolled Healer's I almost always got III's and VII's. Am I truly just that lucky and unlucky, or are the dice not as random as I think they are?