This is a pretty neat take on the theme! The linking of health works really well in a turn-based game like this, and being able to control your enemies actions as well while you are linked leaves room for a lot of strategy. However, I noticed that most of my victories and failures ultimately boiled down to the luck of what is available to me and what my enemy does when we become unlinked, which can make the game a bit frustrating. Choosing cards after defeating enemies seemed to help this problem a lot, so maybe allowing the player to have some sort of choice in their initial deck would help make it feel less luck reliant. The art and sound is gorgeous, probably some of the best I have seen in the jam. They create an atmosphere that seems perfect for the feel of the game, so great job. Overall, I had a lot of fun with the game, and I think it has a lot of potential to grow if you ever return to it!