Right now when I drag a card from my collection to a virtual deck, I get an error dialog box that says: "Cannot perform this operation: Cannot move own cards to virtual collection. Use copy instead.".
It would be nice if instead of getting this dialog box, the application would interpret a drag of an owned card to a virtual deck as a copy operation instead of a move. (i.e. this would work as intended, the owned card count in my collection would stay the same, but the virtual card would also be added to the virtual deck).