This is an improvement on my previous design (https://www.thingiverse.com/thing:2584292). Turn out even with the holders, I end up flicking damage tokens all over the table. I really hate those damage tokens.
With three 0-9 wheels you can mark any character deployment in the game (at least in the expansions I have. Either 0-9 for smaller guys, or use two wheels for bigger characters like Vader.
Holder - I used supports on build plate only, in hindsight it might have worked better without that option. there's a bit of cleanup to clear out support and fit cards nicely. You could if you wanted change out to a different colour filament at 3.4mm (layer 23 at 0.2mm/layer) to make the indicator/stoppers stand out. That was my plan with my run of 6 but I had to leave unexpectedly and wasn't home to change it out.
Counter wheels - Print three. The wheel is face down in the STL. I found that printing that way, while using a slightly lower bed/nozzle temp allowed the rather small numbers the resolve correctly. You'll want to change colour before it starts the solid layers so the contrasting colour shows through the hollow numbers. In my case at 0.2mm per layer changing at layer 5 (1mm) did the trick. Your results/settings may vary depending on your filament/printer I think. I'm using pretty cheap eSun stuff right now.
Be careful fitting the wheels to the holders. I had one shaft break in an early test and shaved .25mm of the diameter and its been fine, but still good to be careful.
First time you put a card in be careful in case there are leavings from the supports.