Nice to see a tutorial in a game jam game, most devs have to ditch it due to time constraints (which is absolutely understandable). I really enjoyed the randomness and having to work with what you have currently at hand. The arena like battles fit the mechanics of the game really well. Nice entry! Sometimes I found it hard to read the card text in the heat of the combat, but once I knew some of them by heart, it became less of a bother.