Oh god! I did some last minute changes when I uploaded the version for the jam and the key/controller-binding tips were turned off!
New version is already up, with the key/button bindings up, spells are the best part of the game! they do need to be equipped, with Xbox 360 controller you open the menu with the "<back" button, just FYI in case you have time to give it another try and don't want to download again.
Thanks for trying the game! and sorry, It's been a crazy week!
Bests!