Imma be honest: we made the dice rolling janky on purpose because we thought it was funny. (Okay, it was supposed to be a LITTLE more elegant than it turned out, but there's only so much you can refine in 48 hours when you're determined to shove as much into a single game as you possibly can)
Since we didn't have a lot of time to tutorialize everything, we were trying to make it into a kind of sandbox where you discover mechanics. For instance: it is possible to throw a die at the enemy to hurt them. (You kinda have to REALLY heave it). It's not mentioned in the tutorial screen I don't think.