Quite dig the idea of collecting dice to cast spells! Bonus points for not making the spells completely random, that'd get real cheap real quick. Would have liked a bit of a tutorial or an in-game menu explaining you have to press the numeric buttons to make the spell menus appear, but it's hard to get that stuff out in-time.
I've found a bug where you can press multiple keys, and that'll make multiple menus appear one after the other? Haven't found a way to make those disappear. If you were to make a post-jam version, I'd reccomend looking into a less gameplay intrusive way to choose spells (radial menu with right click, maybe?). Apart from that, excellent job!