the game looks great! i really liked the music and how it dynamically fades and changes based on if you're in combat or not! details like that are very rare in jam game soundtracks, and they do a lot :3
the graphics and spell effects are very nice - only one thing i would add is a floor texture, i feel like it's a bit bland with only one color.
i agree with others that the map layout, objective and gameplay are somewhat unclear. on my first playthrough the exit didn't even spawn - i looked in all directions and there was only the shop.
some suggestions: definitely a minimap would do wonders! along with maybe some more written direction. also: scrolling to change spells should definitely be added to the tutorial! i learned it from the comments here.
another bug is sometimes when enemies deal damage to me, the screenshake gets like 100x as intense and i can't see anything; and ofc the lag when loading spells for the first time.
nevertheless the game has a lot of potential, and as i said the music and art are great :33
keep going!! im looking forward to trying this game in the future if it gets updated :D