So as I don't have the core books I can't directly answer that. But I can say everything so far looks like it could be covered in the core books.I think the Genesai stated it came from a source book, and there have been a couple of other parts where more source books have been mentioned.(The original trial issue said that an optional rule from a different book was used on a character, I can't remember now, and the Bard has access to a spell that needs a rule from a different source book to use, I researched that for the error video.but can't remember again off the top.of my head. I do have a list somewhere of all the sources books mentioned so far. I will say the adventures are probably worth the magazine, and they all have a standard 6 page limit so could be useful thrown into campaigns or just as one shots. But if you're not a fan of dice then thr price might not be worth it

@@franksiegames Right. Interesting... I know that there were some things that were taken straight off of the core books. The chase complication tables on issue #30 came from the DMG. I don't know how much more (that has been published so far) came from those books. But if there's stuff from supplements plus an adventure, plus some dice, then that might make those worth the cover price.