Nice art! I struggled a lot with making the spellcasting useful, though. Being able to spawn enemies at random early on is AWFUL because you're basically trapped in a small space with them; and the fact they don't kill you but simply send you back to your spawn point makes them only a nuisance and not a threat as you try to ignore them and build. The teleportation spell was also annoying too, but I guess that was the intention? It was really funny at times!
Also, it took me so long to realize I could move the boxes with my mouse, and THAT made everything sooooooo much easier. After that realization, it was really fun!!
Overall, the art is really cool and the game was fun, I love it!