I like the overall game loop. The game moves fast enough that I could see myself sneaking in a quick session or two on my phone/Switch when I have a few minutes.
I thought that the attack/skill/defend text could have stood out more. It took me a few minutes to understand why I couldn't attack the same target multiple times, why I couldn't put down two shields on myself, etc. Maybe a quick animation of the words getting crossed out when an applicable card is set down would help?