I liked it! Especially the art, I absolutely love the vibe. A lot of games in this gamejam used the literal numbers on dice and usually the dice are all black and white. So vibrant colors like this is very welcome. I also did not find the instructions too confusing.
I'm not sure how I feel about being able to re-roll a side of the die that you already used up. On one hand, I personally find it fun to try managing my resources while trying to focus on combat. On the other hand, since its randomized it did give me a twinge of frustration when I re-rolled into a grey side of the die.
All in all, very well done!