So as you go through a campaign, the rules say the heroes can spend experience to "upgrade" their skills.
Does this mean there is a set number of skill slots for a hero and they have to swap out older skills for newer ones, or do they just accumulate and you get more and more skills as the campaign goes on?
Does this mean there is a set number of skill slots for a hero and they have to swap out older skills for newer ones, or do they just accumulate and you get more and more skills as the campaign goes on?