I feel like the game has too little dice types, as there's only 6 different special faces you can put on the dice..
not considering the fact that you get WAY more dice than you need at the start
The plan is to add more dice types as more playable characters get added. I have noticed the "being given too many dice too early" issue though, and my idea for that is to give dice faces fixed numbers. So instead of the dice type's number changing to the slot it was placed in, the dice type stays the number that was shown when you bought it, regardless of where you end up placing it.