First, let me say, I like the physics on the dice. How they jump and spin is always fun to watch. Sadly, even after re-reading it, I cannot say with confidence that I understood the goal and how to get there. I would recommend starting the player with a single dice and maybe each face has a single element on it. Help me to understand when I should use one, then slowly introduce combos. Often time, focusing on a single idea and just polishing it, produces a much more fun experience than adding many things :D