Ah crap, I was in the middle of buying up enough cards for one last set, still needed to pick up Monte, Sage, and Sparkles. Do I just craft the other 7 into gems? I haven't done any of the gem stuff yet, so I have none.
Might as well, unless you can trade for the cards you're missing within the next 55 minutes -- come 10am PT the cards will disappear from your inventory.