Changes to the rules starting with the letter G (Graal and Galtran).

There are many unpleasant things in the rules, I think there's no need to add more.
As for the topic, I believe you can dig for the Grail only when the cross is revealed on the fogged map. Otherwise, you can cheat however you want here and no one will be able to prove anything — all you can say is that you were digging blindly.
As for banning Galthran — I'm against it, he's pleasant and interesting to play. And you can even pay more, what's stopping you? There's a lot of gold on Jebus Cross, the cost of an uppercut stack, and you don't really need to build much if there are plenty of objects. So bids closer to 10k aren't really that scary.
As for Conflux, it's high time to simplify it — allow choosing a hero, except Luna, but playing random is just plain stupid. Allow upgrading the 6th level.