I have playtested the game. It is engaging but because of luck of well communicated goal or progression I started losing an interest quite fast.
One of the biggest problem for me was bad communicated mechanics but anyway within 20-25 min play session I learnt a lot of them.
I do want see some progression in a form of narrative or rogulike elements with upgrades.
My favorite card is "Ice". It is badass relatively to other cards.