I also played a hell of a lot of Power Grid: The Card Game at MAGFest.
If you’re going to see me at a convention I’ll see if Dan will run off more decks for Clod. They’re gifts, because there’s no way I am getting a lawyer involved.
I checked the Variants subforum of Fuji Flush and found this post
Jon had written Herr Friese about the endgame - and discovered that Friedemann had a cool proposal for an alternative ending that adds a few more choices. So we tried it a couple times; it worked nicely. (Basically: if one is forced to discard the final play, one turns it over - then draws as many cards as are turned over and keeps one. So if one fails to play a final card multiple times in a row, one ends up with more choice as to the next card played.)