I love card games, I will give it another try but so far I only had time for 1 run so I'll give me first impressions.
It feels a lot like a mix between Magic the Gathering and Hearthstone which is fine but I did find most of the card effects to not be all that exciting. Maybe its just because its your starting deck. There was a card that gives stats to another card when it enters the board but it could also target itself which felt weird to me but maybe I'm just used to it being different in other games. I'm not sure how much you want to focus on the AI but there was an instance when the AI could prevent losing but didn't. I had 5 damage and he was at 4 hp and he blocked the creature that dealt 1 damage because it was a good trade for him (if he had the life to survive). Overall pretty interesting idea but I'd love to see a lot more flashy effects and rewards for this kind of game