I had fun while playing. I played around 20 games but didn’t manage to beat the 4th enemy.
Your upgrade ideas are really cool, like the reroll, adding previous dice to the last one, and other stacking effects.
I can imagine some insane luck-based builds using those mechanics.
If you're looking to polish it further, I have one suggestion:
Let me either close the outcome window manually after a fight or make it stay on screen a bit longer, so I can better understand which numbers did what and strategize more effectively.
Great entry :)