Thanks so much for the review! Thanks for letting me know about the metric inconsistency (I honestly just forgot about the character select screen in my implementation >.<), I'll add space bar for text advancement, its an easy addition.
A "Mirror" function is on the way, so you can see your character's sprite next to your opponent's in an accurate to scale environment.
The left-most card getting played is a bug, around the 10th is when I'm dropping the next update, and it has a fix.
7 is your hand size per turn, but you can draw over that limit, but I can add that to the tutorial for sure.