Hello.
First, thank you for this really useful tool
Just an idea to improve it :
Could it be possible, when you import a deck, to replace upgraded cards you don't have by their unupped versions ?
Exemple ('cause I'm not sure it's well described) :
I import a deck with supernova.
I've got none, but I've got nova.
Is it possible (and interesting) that the import replace the supernova I don't have by the nova ?