And, maybe I'm just a little slow, but there seems to be no way to undo a card selection just before starting a battle. Sometimes I accidentally click on the wrong card and end up having to play it unnecessarily.
I think that it is intended that you cannot undo a card selection. The reason for it is that your opponent(s) can see the card once you have played it. So, being able to undo a card selection would lead to everyone trying to overtrump the cards of the other player(s) by incessantly deselecting and selecting cards.
You could pick a card that cannot be seen by the opponent (last two slots). I actually suggested before if we could change the last two slots because the enemy won't even see it anyways.
I think they have to change the mechanics of putting cards. They should disable the hidden/secret cards first until the first three card slots have been taken. Also, when putting cards on hidden slots that are prevalent like mercenary cards, it's pretty useless because the enemy can see what you put anyways.
EDIT: my mechanic suggestion was due to the AI always using the first three slots in putting his cards.
This is actually an AI issue rather than the game mechanic itself. Sorry for the confusion.
