Forty made-up critter cards, six sets, one counter. Every customer values a collection differently. Trade smart, finish sets, fill the wall.
Tap or drag cards onto the mat: yours to YOU GIVE, theirs to YOU GET.
Watch the scale. Each customer prices cards their own way. A plain card can be the last one they need.
Finish a set and put it on the wall: worth double at closing. Binder holds 30.