Progress! That's what these Dark Ages need, someone with a little get-up-and-go. You've been a serf in this one-pig town long enough, and it's time to shake things up. You've opened a guildhall for like-minded professionals from all over Europe to work together, build their trades, and get some economic stability.
In Guildhall, each profession grants you special abilities, and these abilities grow stronger the more of the set that you complete. When you cash in the set for victory points, however, you lose the ability until you can build it up again. Which professions are worth risking VP to keep?