Yeah this one confused me. The Guess Who concept wasn’t really clear until I read some comments. Once I ran out of combiner cards there seemed to be nothing I could do, as it didn’t look like I could play the other cards individually.
Thanks for the feedback. I wasn't able to make one since time crunch. For the combiner problem, the best option is to guess instead of ask since that also refresh your hand unless you discard/use the entire 13 combiners already