This is the one where you have to rescue people from grioths and end up with henchman proxies clogging your hand. Since you're all at the same location, keep playing Hot Potato with the proxies. If they're not in your hand at the end of your turn, you can draw your normal number of cards. Of course, by the end of the scenario you'll have n+1 proxies, so everyone will be stuck with one card less, but keep passing that extra proxy around and it'll make a big difference.