I like the idea of the curses being played as cards - getting big Yu-Gi-Oh vibes (especially from using your health pool to summon).
Some cards seem super overpowered. I played three times and lost every time to the AI getting the percentage damage cards like Valefar, Aim, and Astaroth (although maybe that was just me being bad at the game, haha).
The "cards" look cool as well - nice particle effects on them.