Creative concept, like really conceptually you have a really cool game.
Being able to control which abilities you have is very cool.
Animations are lacking, there is often times the AI will use an + ability at the same time as you use a - ability and it feels like rock paper scissors where you both pick rock. It's a little clunky and slows down the game. Being able to see how the enemy has built their deck would allow you as the player to construct a better strategy. You and the enemy should roll different dice though so you can't totally prevent the enemy from doing anything. Some abilities also feel overpowered or completely useless. I feel like investigating the ability spread some more could make the game feel a little better to play.
Overall you have a really good conceptual prototype, next steps would be investigating how particle effects and animations could help give your game a little extra flair, and thinking about how balancing could make each decision a little more different.