Duelingbook Forum

An undo command for times where an action was done by mistake and can't be undone in a way that their opponent can see that they undid it correctly. The most common scenario for me is when I play Drop Off/Drastic Drop Off and my opponent shuffles their hand after drawing the same time I play it, they can't prove they discarded the correct card. Other times is when someone falsely sends their face down card to their hand, then can't prove they reset the same card they returned.

I'm sure that this feature would be easy to implement because replays being supported implies that previous game states are already saved and can be restored. Additionally, making it a command means no new UI needs to be added. So an undo command would be appreciated.

A replay is just a recording, not saving every action.
Why does your opp need to shuffle their hand in the DP? If they do and you had drop off and didn't give you a chance to respond then call a judge. If they accidentally added a set then call a judge they can see the logs. If it's casual either take it as trust or leave.

I called a judge once for that scenario, and the judge told me that in the future let my opponent know before hand, which I can do, but sometimes puts me at a disadvantage. Although for unrated I just trust. Shuffling your hand to prevent your opponent from knowing if a card you play you just drew or were saving can give you a minor advantage, and since only a fraction of a percent of people play Drop Off so it is understandable that others don't anticipate it.

This feature is not necessary, but would be convenient for both players and judges. And if it is as easy to implement as I first thought, then think it would be a worthwhile thing to add.

ha ha good one. Undo button

No