There's the bones of something pretty great here, and if this jam was a week long rather than 4 days I think this could've got there. The spellcasting system is very tactile and memorising the patterns makes you feel like a wizard more than selecting one from a list or pressing a button, and the fact that there are quite a lot of enemies with different resistances and such makes you need to know a few spells.
Unfortunately, it's hard to experiment with the spell grid when the timer's breathing down your neck, and I found I didn't need more than the basic 3-line spells to get to the bottom. Also, I couldn't figure out how to remove/sell items from my inventory. I really hope you keep working on this though, it's super cool! Great work