Thank your for the praise. I thought the same about a roguelike, perhaps I'd take it in that direction if I kept working on it but the original idea was something more story driven, but we didn't have time to realize that fully.
Yep the game is very buggy, and it was way worse a few hours before the submission date. Luckily the game is at least playable enough that one can understand what the point of it is, but would really like to iron out those issues.
And yeah, the whole game was meant to be more like this. Where each character has their own interpretation of what different cards do, hence the flavor text going away to reveal what _they thought_ the card did. We didn't have time to fully implement that either in a way that made sense, but there were elements of that left in for the spiky-haired kid fight so was cool someone spotted it!