Congrats on your first game!
I like the idea of mixing together potions to power up your spells. Could make for some unique gameplay.
However, I wasn't able to finish the game. For some reason, in the second room the spiders were able to hit me even though they were very far away? Also, if I miss all of my potions, it seems like you have to restart the game since you have to kill monsters to get additional potions, but if you have no potions you can't kill monsters.
Anyways, I really like the concept! The game just needs a bit of polish, but I understand that the time limit of the game jam makes it hard to do so.