Very polished for 3 days, love the concept a lot, and I had a lot of fun! Extremely impressive work here. Fights made me a bit anxious each time, but I felt each win was well deserved.
Some parts of the dice selection UI is a little confusing. For example, I wasn't sure originally why the dice rolled upon purchase, and I wasn't sure why the dice patterns were different. Playing a few times made it more clear.
I really do think there's probably a full game in this with more monsters and more dice types. Loved the strategy involved here.