What kind of roles would you like to see in a game?

We've had a lot of role variety in the last couple games, including several games with user-created roles. What roles have you seen recently that you really enjoyed and you'd like to see more of, whether it be a traditional EM role, a player created role (such as grand idea thread) or maybe something you've come up with yourself?

I'd love to see more of the lesser used EM roles making appearances I think. They tend to be interesting without being too unfriendly to newer players.

Both are good in their own ways, I can't take a favorite role.
Plus EM has some new roles now :eyes: