I'm a new runebound player and a new forum user and... I'm italian so...sorry for my not perfect english!!
My doubt is:
It's possible to use all the espansion decks once, even if this decks don't contain any event card?
As you can see, this could be problem because the probability of reintegrate the challenge tokens decreases dramatically...
Maybe an home-rule is required?
Thank you for your collaboration!!