Thanks a lot for you review, we are really glad that you enjoyed the game !
Spell system should work, I tested the game when I uploaded it. You can have more information by hovering the skills icons. But indeed we knew that it was the biggest flaw of the game, we will rework it to deliver a more polished version.
We will take into consideration your remarks about the font and the dificulty to understand what is damaging the vampire. We did not have time to implement a log system that would tell the player the cause of the death. A tutorial would help for this and the spell system as well, we will add one.
Arts mostly came from free to use assets, the credited artists are to congrats for this part ^^
Thanks again for playing the game and your feedback !