I hear multi-sided tokens can slow things down or... something... how much does that really cost? What does it do to your game? I ask since I want to use some randomizable tiles for the floor of maps, and I don't want to do it if it's going to turn into a problem having a bunch of them onscreen. How many instances of the same randomizable token is too many? Or is it about how many options it has as well? Basically, any guidance appreciated!