Really cool idea with combos, i liked how visual bringing understanding what combo it could be with that perk.
Sprites and audio is nice, also i liked animations of skeletons.
I think it will be good if it would be learned combos like in Increment My Shinies (https://itch.io/jam/alchemy-jam-7/rate/4221832) already done learned recipes.
Thank you for done work! It was interesting to play your game.