I thought the visual design is really fun! Love the hand drwan aesthetic and the lively animations. The game is sound and well made. The choice of music I enjoyed as well.
I didn't feel like the slot modifiers made a big difference to the attack damage, and it would have been cool to use multiple cards in one turn. Without multiple turns you could leave out the end turn button
Not sure if this is intended, after I lost a fight the next time going in I started on low hp which made it hard to try again
Well done!