I'm so glad to hear the instructions were clear! One of my biggest worries with this game was confusing players since some friends I sent early prototypes to had a lot of trouble just picking it up. It seemed the most common issues were either assuming you could just play one card per turn, or not knowing which cards could combo into which other cards (e.g. by not knowing that combos went left-to-right across cards but not right-to-left).
Tried to address this as much as possible with the behavior and design of the cards, but don't think it's quite there yet since I noticed Jupiter was playing one card per turn in the video below. I have a couple ideas on how to improve this a bit more that I'll look into adding after the jam, though.