I liked the story a lot, and the combat system is very interesting.
I feel like a couple "tutorial" fights with some clearer explanations of strategies and a lower variety of dice types in the opponent's hand could help a bit to grasp what's going on.
During combat I struggled a bit to remember which dice type beat which and it took me a bit to understand what everything in the UI meant, but eventually figured it out, from there won most battles easily.
Am I misunderstanding something or does only the last couple turns really matters ? Like sure you can use the time to setup your board and reroll more I guess, but it feels a bit weird that it doesn't really have an impact on whether you win or not, some battles I've been winning every round except the last and as a consequence lost.
With some more feedback and maybe a clearer UI I think it would make the onboarding experience much smoother.
Good take on the theme though, was an interesting experience !