Help, how do I determine what is or isn’t common player character knowledge in a fantasy world?
For example, do I assume that every PC knows that Trolls hate fire and regenerate? What about lycanthropes and silver? How to make a proper offering to a fey creature? How to build and use siege weapons?
So far I’ve been asking “Ok, tell us how you know” and then calling for Spout Lore. But there seems to be an opinion in the group that a lot of knowledge should be freely given.
How do you handle this? Where do you draw the line? Am I being too stingy with knowledge?