This is great and challenging!
I've run into a few bugs:
- Business Card being played when opponent only has a locked card creates a softlock! (Locked card was the 11 from the Tarot card if that makes a difference)
- I've also run across a senario when hitting HIT the same time a Special Card effect is resolving causes HIT to be grayed out and forcing me to Stand. Maybe this was from an opponents card and I didn't notice?